{"id":"CVE-2026-22178","aliases":["EUVD-2026-12722","GHSA-c6hr-w26q-c636"],"status":"published","title":"OpenClaw \u003c 2026.2.19 - ReDoS and Regex Injection via Unescaped Feishu Mention Metadata","description":"OpenClaw versions prior to 2026.2.19 construct RegExp objects directly from unescaped Feishu mention metadata in the stripBotMention function, allowing regex injection and denial of service. Attackers can craft nested-quantifier patterns or metacharacters in mention metadata to trigger catastrophic backtracking, block message processing, or remove unintended content before model processing.","severity":{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00331,"percentile":0.26541,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1333"],"published":"2026-03-02T22:17:30Z","modified":"2026-10-28T02:31:10Z","fixes":[{"ecosystem":"npm","package":"openclaw","fixed_in":["2026.2.19"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"openclaw","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2026.2.19"}]}]},{"source":"osv","ecosystem":"npm","package":"openclaw","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.2.19"}]}]}],"products":[{"vendor":"openclaw","product":"openclaw"}],"references":[{"url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-c6hr-w26q-c636","tags":["vendor-advisory","Vendor Advisory","advisory","web"]},{"url":"https://github.com/openclaw/openclaw/commit/7e67ab75cc2f0e93569d12fecd1411c2961fcc8c","tags":["patch","Patch","fix","web"]},{"url":"https://github.com/openclaw/openclaw/commit/74268489137510b6f6349919d1e197b17290d92c","tags":["patch","Patch","fix","web"]},{"url":"https://www.vulncheck.com/advisories/openclaw-redos-and-regex-injection-via-unescaped-feishu-mention-metadata","tags":["third-party-advisory","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-22178","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-c6hr-w26q-c636"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/22xxx/CVE-2026-22178.json","tags":["advisory"]},{"url":"https://github.com/openclaw/openclaw","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-22178","title":"OpenClaw \u003c 2026.2.19 - ReDoS and Regex Injection via Unescaped Feishu Mention Metadata","description":"OpenClaw versions prior to 2026.2.19 construct RegExp objects directly from unescaped Feishu mention metadata in the stripBotMention function, allowing regex injection and denial of service. Attackers can craft nested-quantifier patterns or metacharacters in mention metadata to trigger catastrophic backtracking, block message processing, or remove unintended content before model processing.","status":"published","published":"2026-03-18T01:34:22.432Z","modified":"2026-06-23T16:13:49.741Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium","assessor":"cna"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"cna"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T13:39:16.730222Z"}],"euvd":[{"id":"EUVD-2026-12722","description":"OpenClaw versions prior to 2026.2.19 construct RegExp objects directly from unescaped Feishu mention metadata in the stripBotMention function, allowing regex injection and denial of service. Attackers can craft nested-quantifier patterns or metacharacters in mention metadata to trigger catastrophic backtracking, block message processing, or remove unintended content before model processing.","status":"published","published":"2026-03-18T01:34:22Z","modified":"2026-06-23T16:13:49Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"updated_at":"2026-11-02T18:20:32.768333Z"}],"ghsa":[{"id":"GHSA-c6hr-w26q-c636","title":"OpenClaw has ReDoS and regex injection via unescaped Feishu mention metadata in RegExp construction","description":"## Summary\n\n`extensions/feishu/src/bot.ts` constructed `new RegExp()` directly from Feishu mention metadata (`mention.name`, `mention.key`) in `stripBotMention()` without escaping regex metacharacters.\n\n## Affected Packages / Versions\n\n- Package: npm `openclaw`\n- Affected versions: `\u003c= 2026.2.17`\n- First affected release: `2026.2.6`\n- Patched version: `2026.2.19`\n\n## Impact\n\n- ReDoS: crafted nested-quantifier patterns in mention metadata can trigger catastrophic backtracking and block message processing.\n- Regex injection: metacharacters in mention metadata can remove unintended message content before it is sent to the model.\n\n## Fix Commit(s)\n\n- `7e67ab75cc2f0e93569d12fecd1411c2961fcc8c`\n- `74268489137510b6f6349919d1e197b17290d92c`\n\nThanks @allsmog for reporting.","status":"published","published":"2026-03-02T22:17:30Z","modified":"2026-03-19T18:33:52Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:39:38.524712Z"}],"nvd":[{"id":"CVE-2026-22178","description":"OpenClaw versions prior to 2026.2.19 construct RegExp objects directly from unescaped Feishu mention metadata in the stripBotMention function, allowing regex injection and denial of service. Attackers can craft nested-quantifier patterns or metacharacters in mention metadata to trigger catastrophic backtracking, block message processing, or remove unintended content before model processing.","status":"published","published":"2026-03-18T02:16:22.16Z","modified":"2026-06-17T10:19:29.353Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T14:12:09.735529Z"}],"osv":[{"id":"CVE-2026-22178","title":"OpenClaw \u003c 2026.2.19 - ReDoS and Regex Injection via Unescaped Feishu Mention Metadata","description":"OpenClaw versions prior to 2026.2.19 construct RegExp objects directly from unescaped Feishu mention metadata in the stripBotMention function, allowing regex injection and denial of service. Attackers can craft nested-quantifier patterns or metacharacters in mention metadata to trigger catastrophic backtracking, block message processing, or remove unintended content before model processing.","status":"published","published":"2026-03-18T01:34:22.432Z","modified":"2026-10-28T02:31:10.861972594Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T15:44:58.42038Z"},{"id":"GHSA-c6hr-w26q-c636","title":"OpenClaw has ReDoS and regex injection via unescaped Feishu mention metadata in RegExp construction","description":"## Summary\n\n`extensions/feishu/src/bot.ts` constructed `new RegExp()` directly from Feishu mention metadata (`mention.name`, `mention.key`) in `stripBotMention()` without escaping regex metacharacters.\n\n## Affected Packages / Versions\n\n- Package: npm `openclaw`\n- Affected versions: `\u003c= 2026.2.17`\n- First affected release: `2026.2.6`\n- Patched version: `2026.2.19`\n\n## Impact\n\n- ReDoS: crafted nested-quantifier patterns in mention metadata can trigger catastrophic backtracking and block message processing.\n- Regex injection: metacharacters in mention metadata can remove unintended message content before it is sent to the model.\n\n## Fix Commit(s)\n\n- `7e67ab75cc2f0e93569d12fecd1411c2961fcc8c`\n- `74268489137510b6f6349919d1e197b17290d92c`\n\nThanks @allsmog for reporting.","status":"published","published":"2026-03-02T22:17:30Z","modified":"2026-03-19T18:47:02.478355Z","cvss":[{"version":"4.0","score":6.9,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","level":"medium"}],"cwes":["CWE-1333"],"updated_at":"2026-11-02T15:46:44.571161Z"}]}}