CVE-2026-33576

OpenClaw < 2026.3.28 - Unauthorized Media Download via Zalo Channel

CVSS 4.0 6.9 MEDIUMCVSS 3.1 6.5 MEDIUMEUVD CVSS 4.0 6.9 CVSS 4.0 · [email protected] · Secondary 6.9 MEDIUMCVSS 3.1 · [email protected] · Secondary 6.5 MEDIUMCVSS_V3 CVSS_V4 Publisher rating MODERATEFixed by openclaw 2026.3.28KEV status unknown

Original advisory

cve-program · CVE-2026-33576

Published

OpenClaw before 2026.3.28 downloads and stores inbound media from Zalo channels before validating sender authorization. Unauthorized senders can force network fetches and disk writes to the media store by sending messages that are subsequently rejected.

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euvd · EUVD-2026-17431

Published

Read the publisher's advisory

nvd · CVE-2026-33576

Published

Read the publisher's advisory

osv · GHSA-v2v2-f783-358j

Published

## Summary The Zalo image path fetched and stored inbound media before the DM/pairing authorization checks ran. ## Impact Unauthorized senders could force network fetches and disk writes in the inbound media store even when the message itself was rejected. ## Affected Component `extensions/zalo/src/monitor.ts` ## Fixed Versions - Affected: `<= 2026.3.24` - Patched: `>= 2026.3.28` - Latest stable `2026.3.28` contains the fix. ## Fix Fixed by commit `68ceaf7a5f` (`zalo: gate image downloads before DM auth`). OpenClaw thanks @AntAISecurityLab for reporting.

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Affected versions, risk and source history

cve-program · CVE-2026-33576

Published

OpenClaw

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "OpenClaw",
                    "product": "OpenClaw",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "0",
                            "lessThan": "2026.3.28",
                            "versionType": "semver"
                        },
                        {
                            "status": "unaffected",
                            "version": "2026.3.28",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected",
                    "packageURL": "pkg:npm/openclaw"
                }

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2026-17431

Published

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.

Original publisher date fields

datePublished: Mar 31, 2026, 2:10:30 PM

dateUpdated: Sep 24, 2026, 2:17:21 PM

1 related source bulletins · separate from aliases

WID-SEC-W-2026-0930: OpenClaw: Mehrere Schwachstellen

CVE-2026-33576 · CVE-2026-33577 · CVE-2026-33578 · CVE-2026-33579 · CVE-2026-33580 · CVE-2026-33581 · CVE-2026-34503 · CVE-2026-34504 · CVE-2026-41303 · CVE-2026-41332 · CVE-2026-41342 · CVE-2026-41344 · CVE-2026-41361 · CVE-2026-41367 · CVE-2026-41368 · CVE-2026-41371 · CVE-2026-41380 · CVE-2026-41395

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2026-33576

Published

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.

Source analysis status: Analyzed

Weakness classifications: CWE-863

Original publisher date fields

published: 2026-03-31T15:16:14.327

lastModified: 2026-07-24T21:10:00.143

1 source CPE criteria · context only

cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GHSA-v2v2-f783-358j

Published

openclaw

npm

SEMVER · introduced 0 → fixed 2026.3.28

Original source record · Cite this exact observation · Complete original publisher JSON