CVE-2026-22178

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 76% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: cna:vulncheck, epss
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.5Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
6.5
EG Score
6.5(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity65% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
23%
KEV
Not listed

Published

March 18, 2026

Last Modified

June 23, 2026

Advisory Details (4)

Auto-updated Aug 4, 2026
Patch available. Sources: github, github_commit.
generic

OpenClaw < 2026.2.19 - ReDoS and Regex Injection via Unescaped Feishu Mention Metadata | Advisories | VulnCheck

https://www.vulncheck.com/advisories/openclaw-redos-and-regex-injection-via-unescaped-feishu-mention-metadata
github_commit

commit 742684891375 (openclaw/openclaw)

Fix landed in openclaw/openclaw commit 742684891375 — awaiting tagged release

https://github.com/openclaw/openclaw/commit/74268489137510b6f6349919d1e197b17290d92c
github_commit

commit 7e67ab75cc2f (openclaw/openclaw)

Fix landed in openclaw/openclaw commit 7e67ab75cc2f — awaiting tagged release

https://github.com/openclaw/openclaw/commit/7e67ab75cc2f0e93569d12fecd1411c2961fcc8c
github Patch Available

ReDoS and regex injection via unescaped Feishu mention metadata in RegExp construction · Advisory · openclaw/openclaw · GitHub

https://github.com/openclaw/openclaw/security/advisories/GHSA-c6hr-w26q-c636

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
openclaw—2026.2.19—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 5× in last 7d / 34× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-25 13:48 UTCEPSS rescore
  2. 2026-08-23 00:19 UTCEPSS rescore
  3. 2026-08-21 23:49 UTCEPSS rescore
  4. 2026-08-20 22:55 UTCEPSS rescore
  5. 2026-08-19 17:03 UTCEPSS rescore
  6. 2026-08-18 13:48 UTCEPSS rescore
  7. 2026-08-17 13:47 UTCEPSS rescore
  8. 2026-08-16 14:56 UTCEPSS rescore
  9. 2026-08-16 11:19 UTCEG score recompute
  10. 2026-08-16 02:14 UTCEPSS rescore
  11. 2026-08-15 01:30 UTCEPSS rescore
  12. 2026-08-14 07:26 UTCEG score recompute
  13. 2026-08-13 22:00 UTCEPSS rescore
  14. 2026-08-12 23:12 UTCEG score recompute
  15. 2026-08-12 13:50 UTCEPSS rescore
  16. 2026-08-11 21:32 UTCEG score recompute
  17. 2026-08-11 13:42 UTCEPSS rescore
  18. 2026-08-11 00:00 UTCEPSS rescore
  19. 2026-08-10 08:42 UTCEG score recompute
  20. 2026-08-09 13:46 UTCEPSS rescore
  21. 2026-08-07 17:35 UTCEG score recompute
  22. 2026-08-06 13:46 UTCEPSS rescore
  23. 2026-08-06 01:40 UTCEG score recompute
  24. 2026-08-05 19:17 UTCEPSS rescore
  25. 2026-08-04 15:10 UTCEPSS rescore
Show 59 more
  1. 2026-08-04 10:38 UTCEPSS rescore
  2. 2026-08-04 00:50 UTCEG score recompute
  3. 2026-08-03 10:35 UTCEPSS rescore
  4. 2026-08-02 16:44 UTCEG score recompute
  5. 2026-08-02 02:26 UTCEPSS rescore
  6. 2026-08-01 19:36 UTCOSV refresh
  7. 2026-08-01 04:15 UTCEPSS rescore
  8. 2026-07-30 01:30 UTCEPSS rescore
  9. 2026-07-27 14:13 UTCEPSS rescore
  10. 2026-07-26 14:54 UTCEPSS rescore
  11. 2026-07-26 14:54 UTCEPSS rescore
  12. 2026-07-25 14:17 UTCEPSS rescore
  13. 2026-07-25 14:17 UTCEPSS rescore
  14. 2026-07-24 14:17 UTCEPSS rescore
  15. 2026-07-23 14:18 UTCEPSS rescore
  16. 2026-07-23 14:18 UTCEPSS rescore
  17. 2026-07-23 03:06 UTCEG score recompute
  18. 2026-07-22 14:08 UTCEPSS rescore
  19. 2026-07-21 15:24 UTCEPSS rescore
  20. 2026-07-21 15:24 UTCEPSS rescore
  21. 2026-07-20 17:08 UTCEPSS rescore
  22. 2026-07-19 02:29 UTCEPSS rescore
  23. 2026-07-19 02:28 UTCEPSS rescore
  24. 2026-07-18 10:04 UTCEPSS rescore
  25. 2026-07-18 10:04 UTCEPSS rescore
  26. 2026-07-16 17:03 UTCEPSS rescore
  27. 2026-07-16 17:03 UTCEPSS rescore
  28. 2026-07-15 16:57 UTCEPSS rescore
  29. 2026-07-15 16:57 UTCEPSS rescore
  30. 2026-07-15 02:49 UTCOSV refresh
  31. 2026-07-15 02:00 UTCEPSS rescore
  32. 2026-07-15 02:00 UTCEPSS rescore
  33. 2026-07-13 22:30 UTCEPSS rescore
  34. 2026-07-13 06:13 UTCEPSS rescore
  35. 2026-07-13 06:13 UTCEPSS rescore
  36. 2026-07-12 05:46 UTCEPSS rescore
  37. 2026-07-12 05:46 UTCEPSS rescore
  38. 2026-07-11 08:27 UTCEPSS rescore
  39. 2026-07-09 19:10 UTCEPSS rescore
  40. 2026-07-08 15:15 UTCEPSS rescore
  41. 2026-07-08 15:15 UTCEPSS rescore
  42. 2026-07-07 13:46 UTCEPSS rescore
  43. 2026-07-06 16:27 UTCEPSS rescore
  44. 2026-07-06 16:27 UTCEPSS rescore
  45. 2026-07-06 02:23 UTCEPSS rescore
  46. 2026-07-06 02:23 UTCEPSS rescore
  47. 2026-07-05 02:30 UTCEPSS rescore
  48. 2026-07-04 06:31 UTCEPSS rescore
  49. 2026-07-04 06:31 UTCEPSS rescore
  50. 2026-07-01 15:06 UTCEPSS rescore
  51. 2026-07-01 15:06 UTCEPSS rescore
  52. 2026-06-30 23:22 UTCEPSS rescore
  53. 2026-06-30 23:22 UTCEPSS rescore
  54. 2026-06-29 14:06 UTCEPSS rescore
  55. 2026-06-28 14:07 UTCEPSS rescore
  56. 2026-06-28 04:56 UTCEPSS rescore
  57. 2026-06-28 04:56 UTCEPSS rescore
  58. 2026-06-27 03:24 UTCEG score recompute
  59. 2026-06-27 03:17 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-22178?
CVE-2026-22178 is a medium vulnerability published on March 18, 2026. 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…
When was CVE-2026-22178 disclosed?
CVE-2026-22178 was first published in the National Vulnerability Database on March 18, 2026, with the most recent update on June 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-22178 actively exploited?
CVE-2026-22178 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 76.7% of all scored CVEs.
What is the CVSS score of CVE-2026-22178?
CVE-2026-22178 has a CVSS v4.0 base score of 6.5 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-22178?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-22178, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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