GHSA-c6hr-w26q-c636
OpenClaw has ReDoS and regex injection via unescaped Feishu mention metadata in RegExp construction
Packages
Details
As written in the advisory (Markdown source, shown as plain text).
## Summary
`extensions/feishu/src/bot.ts` constructed `new RegExp()` directly from Feishu mention metadata (`mention.name`, `mention.key`) in `stripBotMention()` without escaping regex metacharacters.
## Affected Packages / Versions
- Package: npm `openclaw`
- Affected versions: `<= 2026.2.17`
- First affected release: `2026.2.6`
- Patched version: `2026.2.19`
## Impact
- ReDoS: crafted nested-quantifier patterns in mention metadata can trigger catastrophic backtracking and block message processing.
- Regex injection: metacharacters in mention metadata can remove unintended message content before it is sent to the model.
## Fix Commit(s)
- `7e67ab75cc2f0e93569d12fecd1411c2961fcc8c`
- `74268489137510b6f6349919d1e197b17290d92c`
Thanks @allsmog for reporting.
References
External links from the advisory. They lead to third-party sites.
- https://github.com/openclaw/openclaw/security/advisories/GHSA-c6hr-w26q-c636
- https://nvd.nist.gov/vuln/detail/CVE-2026-22178
- https://github.com/openclaw/openclaw/commit/74268489137510b6f6349919d1e197b17290d92c
- https://github.com/openclaw/openclaw/commit/7e67ab75cc2f0e93569d12fecd1411c2961fcc8c
- https://github.com/openclaw/openclaw
- https://www.vulncheck.com/advisories/openclaw-redos-and-regex-injection-via-unescaped-feishu-mention-metadata