{"id":"EUVD-2026-80821","revision":null,"records":[{"revision":"4ebd9712e6104f8c8dafe2980c25135a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-77411","aliases":[],"title":"RabbitMQ amqp091-go: Protocol Desynchronization and Frame Injection via Integer Overflow in readLongstr","description":"RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, readLongstr in read.go returns an empty string and a nil error when a declared AMQP longstr length exceeds 0x7FFFFFFF instead of returning ErrSyntax. The function leaves the declared field bytes unread, while readTable treats the operation as successful and continues parsing from the wrong offset. A malicious or compromised broker can provide an oversized longstr in a table field and desynchronize subsequent AMQP parsing, causing attacker-controlled trailing bytes to be interpreted as later fields or frames and disrupting connection integrity and availability. This issue is fixed in version 1.13.0.","state":0,"publishedAt":"2026-09-16T14:45:48.976+00:00","modifiedAt":"2026-09-16T18:35:32.972+00:00","affected":[{"ecosystem":"Vendor product","name":"amqp091-go","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"rabbitmq\",\n                    \"product\": \"amqp091-go\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.13.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","score":9.5,"severity":"CRITICAL"}],"references":["https://github.com/rabbitmq/amqp091-go/security/advisories/GHSA-c5pq-fr2g-9jpf","https://github.com/rabbitmq/amqp091-go/pull/347","https://github.com/rabbitmq/amqp091-go/commit/143c1ace5fa7344cee135e5c7d22970f0de68282","https://github.com/rabbitmq/amqp091-go/releases/tag/v1.13.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-77411","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-77411","identifiers":["CVE-2026-77411"]},"retained":false,"historicalAffected":[]},{"revision":"e6269de6787d44d4b23ce2b742580302","observedAt":"2026-11-11T16:08:47.49+00:00","statement":{"source":"euvd","id":"EUVD-2026-80821","aliases":["CVE-2026-77411","GHSA-c5pq-fr2g-9jpf"],"title":"RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, readLongstr in read.go returns an empty string and a nil error when a declared AMQP longstr length exceeds 0x7FFFFFFF instead of returning ErrSyntax. The function leaves the de…","description":"RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, readLongstr in read.go returns an empty string and a nil error when a declared AMQP longstr length exceeds 0x7FFFFFFF instead of returning ErrSyntax. The function leaves the declared field bytes unread, while readTable treats the operation as successful and continues parsing from the wrong offset. A malicious or compromised broker can provide an oversized longstr in a table field and desynchronize subsequent AMQP parsing, causing attacker-controlled trailing bytes to be interpreted as later fields or frames and disrupting connection integrity and availability. This issue is fixed in version 1.13.0.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","score":9.5,"severity":null}],"references":["https://github.com/rabbitmq/amqp091-go/security/advisories/GHSA-c5pq-fr2g-9jpf","https://github.com/rabbitmq/amqp091-go/pull/347","https://github.com/rabbitmq/amqp091-go/commit/143c1ace5fa7344cee135e5c7d22970f0de68282","https://github.com/rabbitmq/amqp091-go/releases/tag/v1.13.0"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-80821","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Sep 16, 2026, 2:45:48 PM","dateUpdated":"Sep 16, 2026, 6:35:32 PM"},"relatedAdvisories":[{"id":"RHSA-2026:95517","title":"Red Hat Security Advisory: Multicluster Global Hub 1.7.4 security update","vulnerabilityIds":["CVE-2026-14199","CVE-2026-15815","CVE-2026-17183","CVE-2026-39834","CVE-2026-42127","CVE-2026-63209","CVE-2026-73501","CVE-2026-73502","CVE-2026-76905","CVE-2026-77354","CVE-2026-77405","CVE-2026-77411","CVE-2026-84445","CVE-2026-88031","CVE-2026-92542","CVE-2026-92543"]},{"id":"RHSA-2026:73523","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update","vulnerabilityIds":["CVE-2026-56851","CVE-2026-77411"]},{"id":"RHSA-2026:92307","title":"Red Hat Security Advisory: Red Hat Advanced Cluster Management for Kubernetes v2.13.14 security update","vulnerabilityIds":["CVE-2026-14199","CVE-2026-15815","CVE-2026-33818","CVE-2026-37236","CVE-2026-39834","CVE-2026-56853","CVE-2026-56854","CVE-2026-56858","CVE-2026-56859","CVE-2026-56860","CVE-2026-56862","CVE-2026-63209","CVE-2026-77354","CVE-2026-77405","CVE-2026-77411","CVE-2026-84304","CVE-2026-84375","CVE-2026-84445","CVE-2026-88031","CVE-2026-93748","CVE-2026-106445","CVE-2026-106446"]}],"note":"EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON."},"key":"euvd:EUVD-2026-80821","identifiers":["EUVD-2026-80821","CVE-2026-77411","GHSA-c5pq-fr2g-9jpf"]},"retained":false,"historicalAffected":[]},{"revision":"569a9d48cd9547f5bf0441aaa7743737","observedAt":"2026-10-25T16:19:04.694+00:00","statement":{"source":"nvd","id":"CVE-2026-77411","aliases":[],"title":"RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, readLongstr in read.go returns an empty string and a nil error when a declared AMQP longstr length exceeds 0x7FFFFFFF instead of returning ErrSyntax. The function leaves the de…","description":"RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, readLongstr in read.go returns an empty string and a nil error when a declared AMQP longstr length exceeds 0x7FFFFFFF instead of returning ErrSyntax. The function leaves the declared field bytes unread, while readTable treats the operation as successful and continues parsing from the wrong offset. A malicious or compromised broker can provide an oversized longstr in a table field and desynchronize subsequent AMQP parsing, causing attacker-controlled trailing bytes to be interpreted as later fields or frames and disrupting connection integrity and availability. This issue is fixed in version 1.13.0.","state":0,"publishedAt":"2026-09-16T15:17:50.563+00:00","modifiedAt":"2026-09-23T18:19:19.803+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":9.5,"severity":"CRITICAL"}],"references":["https://github.com/rabbitmq/amqp091-go/commit/143c1ace5fa7344cee135e5c7d22970f0de68282","https://github.com/rabbitmq/amqp091-go/pull/347","https://github.com/rabbitmq/amqp091-go/releases/tag/v1.13.0","https://github.com/rabbitmq/amqp091-go/security/advisories/GHSA-c5pq-fr2g-9jpf"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-77411","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-754"],"productCriteria":[],"sourceDates":{"published":"2026-09-16T15:17:50.563","lastModified":"2026-09-23T18:19:19.803"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-77411","identifiers":["CVE-2026-77411"]},"retained":false,"historicalAffected":[]},{"revision":"7cb2cd0f2da44c81b61e296987da3faf","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GHSA-c5pq-fr2g-9jpf","aliases":["CVE-2026-77411","GO-2026-6496"],"title":"RabbitMQ amqp091-go: Protocol Desynchronization and Frame Injection via Integer Overflow in readLongstr","description":"**Summary**\n\nA critical stream desynchronization vulnerability has been identified in the AMQP wire-protocol parser. When parsing a long string (`readLongstr`) within a table field, providing a length that exceeds the maximum signed 32-bit integer (`2^31 - 1`, or roughly `2.1` GiB) triggers an improper error-handling condition. The parser abruptly aborts the read and returns a success status (`\"\",nil`) without consuming the specified bytes from the underlying network buffer. This causes all subsequent read operations to become misaligned. The parser interprets arbitrary offsets within the remaining payload bytes as valid AMQP frame headers, leading to potential Remote Code Execution (RCE), data injection, or complete connection hijacking.\n\n**Vulnerability Details**\n\nThe vulnerability exists within the bounds-checking logic of the readLongstr function:\n```go\n// read.go:113-114 — silent no-op return, bytes left in stream\nif length > (^uint32(0) >> 1) {\n    return  // returns \"\", nil, does NOT consume `length` bytes\n}\n```\nWhen `length` evaluates to a value greater than `0x7FFFFFFF`:\n\n1. The function executes a silent `return` statement.\n2. Because Go utilizes named or zero-value initialization for unassigned return registers, this yields `\"\", nil` (indicating a successful read of an empty string).\n3. The Critical Failure: The reader's cursor is not advanced by `length` bytes. The malformed payload remains sitting in the TCP/buffer stream.\n\n**Impact**\n\nAs `readTable` continues iterating over the stream under the assumption that the string was successfully parsed, the byte alignment is entirely broken.\n\n- Parser Desynchronization: Future AMQP frame headers are read from arbitrary offsets inside the attacker-controlled message payload.\n- Payload Reinterpretation: A malicious actor can carefully craft the trailing bytes of the initial payload to perfectly mimic valid AMQP frames (e.g., `connection.close`, `channel.open`, or message publishing frames), forcing the client/server to execute unintended actions.","state":0,"publishedAt":"2026-09-17T17:04:25+00:00","modifiedAt":"2026-10-01T20:56:08.601216+00:00","affected":[{"ecosystem":"Go","name":"github.com/rabbitmq/amqp091-go","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.13.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"CRITICAL"}],"references":["https://github.com/rabbitmq/amqp091-go/security/advisories/GHSA-c5pq-fr2g-9jpf","https://nvd.nist.gov/vuln/detail/CVE-2026-77411","https://github.com/rabbitmq/amqp091-go/pull/347","https://github.com/rabbitmq/amqp091-go/commit/143c1ace5fa7344cee135e5c7d22970f0de68282","https://github.com/rabbitmq/amqp091-go","https://github.com/rabbitmq/amqp091-go/releases/tag/v1.13.0"],"sourceUrl":"https://github.com/advisories/GHSA-c5pq-fr2g-9jpf","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-c5pq-fr2g-9jpf","identifiers":["GHSA-c5pq-fr2g-9jpf","CVE-2026-77411","GO-2026-6496"]},"retained":false,"historicalAffected":[]},{"revision":"79d2d62270754ee1a2004b7f23f8ba96","observedAt":"2026-10-24T13:19:41.952+00:00","statement":{"source":"osv","id":"GO-2026-6496","aliases":["CVE-2026-77411","GHSA-c5pq-fr2g-9jpf"],"title":"RabbitMQ amqp091-go: Protocol Desynchronization and Frame Injection via Integer Overflow in readLongstr in github.com/rabbitmq/amqp091-go","description":"RabbitMQ amqp091-go: Protocol Desynchronization and Frame Injection via Integer Overflow in readLongstr in github.com/rabbitmq/amqp091-go","state":0,"publishedAt":"2026-10-01T20:23:56+00:00","modifiedAt":"2026-10-01T20:45:11.2717375+00:00","affected":[{"ecosystem":"Go","name":"github.com/rabbitmq/amqp091-go","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.13.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[],"references":["https://github.com/rabbitmq/amqp091-go/security/advisories/GHSA-c5pq-fr2g-9jpf","https://nvd.nist.gov/vuln/detail/CVE-2026-77411","https://github.com/rabbitmq/amqp091-go/commit/143c1ace5fa7344cee135e5c7d22970f0de68282","https://github.com/rabbitmq/amqp091-go/pull/347","https://github.com/rabbitmq/amqp091-go/releases/tag/v1.13.0"],"sourceUrl":"https://osv.dev/vulnerability/GO-2026-6496","license":"OSV · upstream source license applies","key":"osv:GO-2026-6496","identifiers":["GO-2026-6496","CVE-2026-77411","GHSA-c5pq-fr2g-9jpf"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. Missing entries do not establish absence of exploitation.","generation":"2026-11-11T21:58:49.5594544+00:00","complete":true,"records":1779,"lastAttemptAt":"2026-11-11T21:58:49.5594544+00:00","lastSuccessAt":"2026-11-11T21:58:49.7696899+00:00","error":null,"lastVerifiedAt":"2026-11-11T21:58:49.7696907+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"cve-program","scope":"Official CVE Program baseline and cumulative hourly delta; all vendors, published and rejected records","generation":"cve-de3b77103708811b6494d2ff7c979037d73ae579742cd1649a5c765137ae5083-0cd050aa4e3407be88a99da87c4684cdd6e2bb2192e7b5d8516c5221fe2996c0","complete":true,"records":424321,"lastAttemptAt":"2026-11-11T21:56:53.6118096+00:00","lastSuccessAt":"2026-11-11T21:56:53.4062549+00:00","error":null,"lastVerifiedAt":"2026-11-11T21:56:53.6118096+00:00","snapshotPublishedAt":"2026-11-11T21:25:28+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"euvd","scope":"Rolling EUVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global EUVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-0211f24f7dd2479496f11922c7aad014","complete":false,"records":13760,"lastAttemptAt":"2026-11-11T22:09:10.3527395+00:00","lastSuccessAt":"2026-11-11T22:09:09.323+00:00","error":"346 identifier lookups failed; latest failures include AccessDenied (HTTP 403). Other identifiers were checked independently.","lastVerifiedAt":"2026-11-11T22:09:09.323+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13257,"expectedIdentifiers":13813,"failedIdentifiers":346},{"source":"first-epss:nuget","scope":"FIRST EPSS for explicit CVE aliases in the collected public NuGet archive. Not a global EPSS backfill.","generation":"2026-11-11T21:58:49.5594544+00:00","complete":true,"records":1097,"lastAttemptAt":"2026-11-11T21:58:49.5594544+00:00","lastSuccessAt":"2026-11-11T21:58:49.7704457+00:00","error":null,"lastVerifiedAt":"2026-11-11T21:58:49.7704461+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. No reader inventory is sent.","generation":"enrichment-e103bc43c8e54398a828cba9bdd81bf5","complete":true,"records":13754,"lastAttemptAt":"2026-11-11T21:59:28.9840194+00:00","lastSuccessAt":"2026-11-11T21:59:28.981+00:00","error":null,"lastVerifiedAt":"2026-11-11T21:59:28.981+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":13813,"expectedIdentifiers":13813,"failedIdentifiers":0},{"source":"osv:Go","scope":"Complete OSV Go ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"go-3562b6c78fd1bd0f0b55daf66a0926ae24f65e462df7f6d928caad458fc696bf","complete":true,"records":9947,"lastAttemptAt":"2026-11-11T21:58:49.3669281+00:00","lastSuccessAt":"2026-11-11T04:27:43.6877707+00:00","error":null,"lastVerifiedAt":"2026-11-11T21:58:49.3669281+00:00","snapshotPublishedAt":"2026-11-11T03:32:46+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:NuGet","scope":"Complete OSV NuGet ecosystem archive, including GitHub Advisory Database records; NuGet version matching only","generation":"nuget-456002455e0ab94bb92c95476d4e6d175c104cd594749982afd96c893728ecbc","complete":true,"records":2010,"lastAttemptAt":"2026-11-11T21:56:53.7926299+00:00","lastSuccessAt":"2026-11-11T02:36:58.1276999+00:00","error":null,"lastVerifiedAt":"2026-11-11T21:56:53.7926299+00:00","snapshotPublishedAt":"2026-11-11T01:17:51+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:crates.io","scope":"Complete OSV crates.io ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"crates.io-baa8362b4daf9e5f39d5563775a55935e7b442c0735d33274a921579ce4a0d66","complete":true,"records":3093,"lastAttemptAt":"2026-11-11T21:58:49.4873797+00:00","lastSuccessAt":"2026-11-11T13:00:02.5446881+00:00","error":null,"lastVerifiedAt":"2026-11-11T21:58:49.4873797+00:00","snapshotPublishedAt":"2026-11-11T12:47:47+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"osv:npm","scope":"Complete OSV npm ecosystem archive, including withdrawn and malicious-package source records; statement counts are not unique CVE counts","generation":"npm-685fe7fb2b690656c910a1ea42a9d294e8353311ac8ecfa691a9b0ff1b328804","complete":true,"records":231695,"lastAttemptAt":"2026-11-11T21:58:49.2338613+00:00","lastSuccessAt":"2026-11-11T21:58:47.7265713+00:00","error":null,"lastVerifiedAt":"2026-11-11T21:58:49.2338613+00:00","snapshotPublishedAt":"2026-11-11T21:48:35+00:00","importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null}]}