OpenClaw: Remote media error responses could trigger unbounded memory allocation before failure
## Summary Remote media HTTP error bodies were read without a hard size cap before failure handling, allowing unbounded allocation on error responses. ## Affected Packages / Versions - Package: `openclaw` (npm) - Affected: < 2026.3.22 - Fixed: >= 2026.3.22 - Latest released tag checked: `v2026.3.23-2` (`630f1479c44f78484dfa21bb407cbe6f171dac87`) - Latest published npm version checked: `2026.3.23-2` ## Fix Commit(s) - `81445a901091a5d27ef0b56fceedbe4724566438` ## Release Status The fix shipped in `v2026.3.22` and remains present in `v2026.3.23` and `v2026.3.23-2`. ## Code-Level Confirmation - src/media/fetch.ts now routes non-2xx failures through bounded prefix reads instead of buffering the whole error body. - src/media/read-response-with-limit.ts enforces capped reads and truncates oversized snippets before surfacing failure text. OpenClaw thanks @YLChen-007 for reporting.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-35633US | — | — | ||
OpenClaw before 2026.3.22 contains an unbounded memory allocation vulnerability in remote media HTTP error handling that allows attackers to trigger excessive memory consumption. A… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/openclaw/openclawPACKAGE
- https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87WEB
- https://github.com/openclaw/openclaw/commit/81445a901091a5d27ef0b56fceedbe4724566438WEB
- https://github.com/openclaw/openclaw/security/advisories/GHSA-4qwc-c7g9-4xcwWEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-35633ADVISORY
- https://www.vulncheck.com/advisories/openclaw-unbounded-memory-allocation-via-remote-media-error-responsesWEB
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