{"id":"CVE-2026-35633","aliases":["GHSA-4qwc-c7g9-4xcw"],"url":"https://o3.security/vulnerability/CVE-2026-35633","summary":"OpenClaw < 2026.3.22 - Unbounded Memory Allocation via Remote Media Error Responses","details":"## Summary\nRemote media HTTP error bodies were read without a hard size cap before failure handling, allowing unbounded allocation on error responses.\n\n## Affected Packages / Versions\n- Package: `openclaw` (npm)\n- Affected: < 2026.3.22\n- Fixed: >= 2026.3.22\n- Latest released tag checked: `v2026.3.23-2` (`630f1479c44f78484dfa21bb407cbe6f171dac87`)\n- Latest published npm version checked: `2026.3.23-2`\n\n## Fix Commit(s)\n- `81445a901091a5d27ef0b56fceedbe4724566438`\n\n## Release Status\nThe fix shipped in `v2026.3.22` and remains present in `v2026.3.23` and `v2026.3.23-2`.\n\n## Code-Level Confirmation\n- src/media/fetch.ts now routes non-2xx failures through bounded prefix reads instead of buffering the whole error body.\n- src/media/read-response-with-limit.ts enforces capped reads and truncates oversized snippets before surfacing failure text.\n\nOpenClaw thanks @YLChen-007 for reporting.","published":"2026-04-09T21:27:03.600Z","modified":"2026-08-17T03:48:14.873776805Z","cvss":null,"epss":{"score":0.0036,"percentile":0.29588,"asOf":"2026-09-16"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"openclaw","fixedVersion":"2026.3.22"}],"fix":{"url":"https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87","label":"openclaw/openclaw@630f147"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35633.json"},{"type":"ADVISORY","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-4qwc-c7g9-4xcw"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35633"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/openclaw-unbounded-memory-allocation-via-remote-media-error-responses"},{"type":"FIX","url":"https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87"},{"type":"FIX","url":"https://github.com/openclaw/openclaw/commit/81445a901091a5d27ef0b56fceedbe4724566438"},{"type":"PACKAGE","url":"https://github.com/openclaw/openclaw"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-17T03:48:14.873776805Z"}}