CVE-2026-22178

MEDIUMPre-NVD 6.56.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This medium-severity CVE scores 6.5 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.3% (26th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from the CNA's CVSS
Sources: the CNA's CVSS, EPSS

Also known asEUVD-2026-12722 (ENISA EUVD) · GHSA-c6hr-w26q-c636 (GitHub Security Advisories)Source: ENISA EUVD

6.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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
6.5MEDIUMmedium confidence
EG Risk
44
EG Risk 44/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity65% × 45%
Impact severity (EG Severity): CVSS 6.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.3% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.3%
EPSS %ILE
26th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (6.5): severity, escalated by confirmed exploitation. This CVE's 6.5 is its impact severity (EG Severity), not escalated.

EG Severity
6.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.the CNA's CVSS · CVSS v3.0 or v3.1
EG Likelihood
0.3% within 30 daysSource: FIRST EPSS. FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

March 18, 2026

Last Modified

June 23, 2026

Advisory Details (4)

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

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 advisoryMentions a patch (unverified)

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

Vendor Advisories for CVE-2026-22178(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
npmopenclaw @ 2026.2.19 (fixes < 2026.2.19)—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
openclaw—
  • every version up to 2026.2.19: fixed in 2026.2.19
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 32× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 166 rows on record for this CVE, as 99 entries (1 repeat merged).

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 66 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 16:33 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  2. 2026-11-11 16:39 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  3. 2026-11-10 16:43 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  4. 2026-11-09 16:34 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  5. 2026-11-08 16:38 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  6. 2026-11-07 16:38 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  7. 2026-11-06 16:37 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  8. 2026-11-05 16:37 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  9. 2026-11-04 16:35 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  10. 2026-11-03 16:47 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  11. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  12. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  13. 2026-11-01 07:58 UTCGHSA enrichmentGHSA-c6hr-w26q-c636 · GitHub severity MODERATE
  14. 2026-11-01 07:58 UTCEchelonGraph re-scored
  15. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  16. 2026-10-31 04:25 UTCOSV refresh
  17. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  18. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  19. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  20. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  21. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  22. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  23. 2026-10-25 14:42 UTCEchelonGraph re-scored
  24. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  25. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.3% · 24th percentile
Show 74 more
  1. 2026-10-23 05:37 UTCEchelonGraph re-scored
  2. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  3. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  4. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  5. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  6. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  7. 2026-10-18 03:55 UTCEchelonGraph re-scored
  8. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  9. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  10. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  11. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  12. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  13. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  14. 2026-10-12 16:22 UTCEchelonGraph re-scored
  15. 2026-10-11 20:04 UTCEchelonGraph re-scored
  16. 2026-10-11 17:17 UTCEchelonGraph re-scored
  17. 2026-10-11 14:49 UTCEchelonGraph re-scored
  18. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  19. 2026-10-11 09:44 UTCOSV refresh
  20. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  21. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  22. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  23. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  24. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  25. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  26. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  27. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  28. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  29. 2026-09-29 15:21 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  30. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  31. 2026-09-27 13:47 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  32. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  33. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  34. 2026-09-24 14:03 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  35. 2026-09-21 22:15 UTCOSV refresh
  36. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  37. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  38. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  39. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  40. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  41. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  42. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  43. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  44. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  45. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  46. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  47. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  48. 2026-09-02 18:08 UTCOSV refresh
  49. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  50. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  51. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  52. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  53. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  54. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  55. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  56. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  57. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  58. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  59. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 24th percentile
  60. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  61. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  62. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  63. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  64. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  65. 2026-08-16 11:19 UTCEchelonGraph re-scored
  66. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  67. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  68. 2026-08-14 07:26 UTCEchelonGraph re-scored
  69. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  70. 2026-08-12 23:12 UTCEchelonGraph re-scored
  71. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  72. 2026-08-11 21:32 UTCEchelonGraph re-scored
  73. 2026-08-11 13:42 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  74. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.3% · 23rd percentile

Frequently asked(5)

What is CVE-2026-22178?
CVE-2026-22178 is a medium-severity vulnerability; its CVE record was 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 made public?
CVE-2026-22178 was made public on February 21, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on March 18, 2026. EchelonGraph's copy of the record carries a last-modified date of June 23, 2026; the record at its source may have been updated since.
Is CVE-2026-22178 actively exploited?
CVE-2026-22178 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (26th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-22178?
CVE-2026-22178 has a CVSS base score of 6.5 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-22178?
A fix for CVE-2026-22178 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-22178 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-22178

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