{"id":"CVE-2026-54271","revision":null,"records":[{"revision":"7087cc4c23004256b64c9c807b77d9fc","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-54271","aliases":[],"title":"protobufjs-cli: Code injection in pbjs static output from crafted JSON descriptor names","description":"protobufjs-cli is the command line add-on for protobuf.js. Prior to 1.3.2 and 2.5.0, a previous fix for unsafe name handling in pbjs static / static-module code generation was incomplete. Affected versions of protobufjs-cli could still emit unsafe JavaScript references when generating static output from crafted JSON descriptor input. The common case of parsing schemas from .proto files is not affected. This is a bypass of CVE-2026-44295. An attacker who can provide or influence pre-parsed JSON descriptors passed to pbjs static code generation may be able to cause generated JavaScript output to contain attacker-controlled code. The injected code may execute if the generated file is later executed or imported and an affected generated API path is invoked. This vulnerability is fixed in 1.3.2 and 2.5.0.","state":0,"publishedAt":"2026-06-22T16:16:05.062+00:00","modifiedAt":"2026-06-23T13:49:08.385+00:00","affected":[{"ecosystem":"Vendor product","name":"protobufjs-cli","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"protobufjs\",\n                    \"product\": \"protobufjs-cli\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 1.3.2\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 2.0.0, < 2.4.2\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L","score":8.2,"severity":"HIGH"}],"references":["https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-pr59-h9ph-3fr8"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-54271","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-54271","identifiers":["CVE-2026-54271"]},"retained":false,"historicalAffected":[]},{"revision":"a40131c9a9af4b84bc14338b00f24bbd","observedAt":"2026-11-07T12:29:01.574+00:00","statement":{"source":"euvd","id":"EUVD-2026-38304","aliases":["CVE-2026-54271","GHSA-pr59-h9ph-3fr8"],"title":"protobufjs-cli is the command line add-on for protobuf.js. 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This vulnerability is fixed in 1.3.2 and 2.5.0.","state":0,"publishedAt":null,"modifiedAt":null,"affected":[],"metrics":[{"system":"EUVD CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L","score":8.2,"severity":null}],"references":["https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-pr59-h9ph-3fr8"],"sourceUrl":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-38304","license":"ENISA EUVD · source terms and attribution apply","enrichment":{"sourceStatus":null,"weaknesses":[],"productCriteria":[],"sourceDates":{"datePublished":"Jun 22, 2026, 4:16:05 PM","dateUpdated":"Jun 23, 2026, 1:49:08 PM"},"relatedAdvisories":[],"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-2026-38304","identifiers":["EUVD-2026-38304","CVE-2026-54271","GHSA-pr59-h9ph-3fr8"]},"retained":false,"historicalAffected":[]},{"revision":"020eb329c47f43eeb3896c8450973940","observedAt":"2026-10-27T14:13:32.924+00:00","statement":{"source":"nvd","id":"CVE-2026-54271","aliases":[],"title":"protobufjs-cli is the command line add-on for protobuf.js. Prior to 1.3.2 and 2.5.0, a previous fix for unsafe name handling in pbjs static / static-module code generation was incomplete. Affected versions of protobufjs-cli could still emit…","description":"protobufjs-cli is the command line add-on for protobuf.js. Prior to 1.3.2 and 2.5.0, a previous fix for unsafe name handling in pbjs static / static-module code generation was incomplete. Affected versions of protobufjs-cli could still emit unsafe JavaScript references when generating static output from crafted JSON descriptor input. The common case of parsing schemas from .proto files is not affected. This is a bypass of CVE-2026-44295. An attacker who can provide or influence pre-parsed JSON descriptors passed to pbjs static code generation may be able to cause generated JavaScript output to contain attacker-controlled code. The injected code may execute if the generated file is later executed or imported and an affected generated API path is invoked. This vulnerability is fixed in 1.3.2 and 2.5.0.","state":0,"publishedAt":"2026-06-22T18:16:45.61+00:00","modifiedAt":"2026-10-25T23:10:00.167+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L","score":8.2,"severity":"HIGH"}],"references":["https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-pr59-h9ph-3fr8"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-54271","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Analyzed","weaknesses":["CWE-94"],"productCriteria":["cpe:2.3:a:protobufjs_project:protobufjs-cli:*:*:*:*:*:node.js:*:*"],"sourceDates":{"published":"2026-06-22T18:16:45.610","lastModified":"2026-10-25T23:10:00.167"},"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-2026-54271","identifiers":["CVE-2026-54271"]},"retained":false,"historicalAffected":[]},{"revision":"cccac9c3f9c74f3b9f4b4039e7eb19ee","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-pr59-h9ph-3fr8","aliases":["CVE-2026-54271"],"title":"protobufjs-cli: Code injection in pbjs static output from crafted JSON descriptor names","description":"## Summary\n\nA previous fix for unsafe name handling in `pbjs` static / static-module code generation was incomplete. Affected versions of `protobufjs-cli` could still emit unsafe JavaScript references when generating static output from crafted JSON descriptor input. The common case of parsing schemas from `.proto` files is not affected.\n\nThis is a bypass of GHSA-6r35-46g8-jcw9 / CVE-2026-44295.\n\n## Impact\n\nAn attacker who can provide or influence pre-parsed JSON descriptors passed to `pbjs` static code generation may be able to cause generated JavaScript output to contain attacker-controlled code.\n\nThe injected code may execute if the generated file is later executed or imported and an affected generated API path is invoked.\n\n## Preconditions\n\n* The application or build process must run `pbjs` static code generation on a pre-parsed JSON descriptor influenced by an attacker.\n* The generated JavaScript file must subsequently be executed or imported.\n* An affected generated API path must be invoked.\n\n## Workarounds\n\nDo not run affected versions of `pbjs` static or static-module generation on untrusted JSON descriptors. If untrusted JSON descriptors must be accepted, validate descriptor-derived names before code generation and reject names that could not have been produced by parsing a valid `.proto` file. Running code generation in an isolated environment can reduce impact.","state":0,"publishedAt":"2026-06-15T20:13:54+00:00","modifiedAt":"2026-09-10T03:50:50.0919686+00:00","affected":[{"ecosystem":"npm","name":"protobufjs-cli","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.3.2"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"protobufjs-cli","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"2.0.0"},{"kind":"fixed","version":"2.5.0"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/protobufjs/protobuf.js/security/advisories/GHSA-pr59-h9ph-3fr8","https://nvd.nist.gov/vuln/detail/CVE-2026-54271","https://github.com/protobufjs/protobuf.js"],"sourceUrl":"https://github.com/advisories/GHSA-pr59-h9ph-3fr8","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-pr59-h9ph-3fr8","identifiers":["GHSA-pr59-h9ph-3fr8","CVE-2026-54271"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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