CVE-2026-44109

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

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

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.7% (53rd percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3

Also known asEUVD-2026-28184 (ENISA EUVD)Source: ENISA EUVD

9.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

OpenClaw before 2026.4.15 contains an authentication bypass vulnerability in Feishu webhook and card-action validation that allows unauthenticated requests to reach command dispatch. Missing encryptKey configuration and blank callback tokens fail open instead of rejecting requests, enabling attackers to bypass signature verification and replay protection to execute arbitrary commands.

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
59
EG Risk 59/100

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)
Severity98% × 45%
Impact severity (EG Severity): CVSS 9.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.7% × 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 total (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
0.7%
EPSS %ILE
53rd
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 (9.8): severity, escalated by confirmed exploitation. This CVE's 9.8 is its impact severity (EG Severity), not escalated.

EG Severity
9.8 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
0.7% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-29). 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: 3 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source: 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 total (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)3 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact total (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

May 6, 2026

Last Modified

May 7, 2026

Advisory Details (3)

Auto-updated Oct 8, 2026
Patch available. Sources: github_commit, github.
Web page

OpenClaw < 2026.4.15 - Authentication Bypass in Feishu Webhook and Card-Action Validation | Advisories | VulnCheck

https://www.vulncheck.com/advisories/openclaw-authentication-bypass-in-feishu-webhook-and-card-action-validation
GitHub advisoryMentions a patch (unverified)

Feishu webhook and card-action validation now fail closed · Advisory · openclaw/openclaw · GitHub

https://github.com/openclaw/openclaw/security/advisories/GHSA-xh72-v6v9-mwhc
GitHub commit

commit c8003f1b33ed (openclaw/openclaw)

Fix landed in openclaw/openclaw commit c8003f1b33ed — awaiting tagged release

https://github.com/openclaw/openclaw/commit/c8003f1b33ed2924be5f62131bd28742c5a41aae

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
openclaw—
  • every version up to 2026.4.15: fixed in 2026.4.15
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 15× in last 7d / 52× 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 it from the CNA feed. 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). Most recent first.

Showing the most recent 100 of 204 refreshes on record for this CVE.

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. None are among the latest 100 rows. The 104 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-30 05:26 UTCEG score recompute
  2. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  3. 2026-10-29 06:25 UTCEG score recompute
  4. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  5. 2026-10-28 07:22 UTCEG score recompute
  6. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  7. 2026-10-27 08:20 UTCEG score recompute
  8. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  9. 2026-10-26 07:03 UTCEG score recompute
  10. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
  11. 2026-10-25 14:27 UTCEG score recompute
  12. 2026-10-25 07:59 UTCEG score recompute
  13. 2026-10-24 16:33 UTCEPSS rescoreEPSS 1.1% · 65th percentile
  14. 2026-10-24 08:56 UTCEG score recompute
  15. 2026-10-23 16:31 UTCEPSS rescoreEPSS 1.1% · 65th percentile
  16. 2026-10-23 09:53 UTCEG score recompute
  17. 2026-10-22 16:34 UTCEPSS rescoreEPSS 1.1% · 65th percentile
  18. 2026-10-22 10:51 UTCEG score recompute
  19. 2026-10-21 16:33 UTCEPSS rescoreEPSS 1.1% · 65th percentile
  20. 2026-10-21 11:42 UTCEG score recompute
  21. 2026-10-20 16:33 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  22. 2026-10-20 12:39 UTCEG score recompute
  23. 2026-10-19 16:32 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  24. 2026-10-19 13:20 UTCEG score recompute
  25. 2026-10-18 16:32 UTCEPSS rescoreEPSS 1.1% · 64th percentile
Show 75 more
  1. 2026-10-18 03:39 UTCEG score recompute
  2. 2026-10-17 16:34 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  3. 2026-10-17 13:34 UTCEG score recompute
  4. 2026-10-16 16:42 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  5. 2026-10-16 14:30 UTCEG score recompute
  6. 2026-10-15 16:32 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  7. 2026-10-15 14:56 UTCEG score recompute
  8. 2026-10-14 16:33 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  9. 2026-10-14 09:24 UTCEG score recompute
  10. 2026-10-13 16:34 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  11. 2026-10-13 06:54 UTCEG score recompute
  12. 2026-10-12 16:34 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  13. 2026-10-12 16:05 UTCEG score recompute
  14. 2026-10-11 19:47 UTCEG score recompute
  15. 2026-10-11 17:02 UTCEG score recompute
  16. 2026-10-11 14:27 UTCEG score recompute
  17. 2026-10-11 13:48 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  18. 2026-10-10 20:00 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  19. 2026-10-09 20:07 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  20. 2026-10-08 17:12 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  21. 2026-10-07 23:48 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  22. 2026-10-06 15:18 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  23. 2026-10-05 17:43 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  24. 2026-10-04 23:22 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  25. 2026-10-03 14:25 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  26. 2026-10-01 19:50 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  27. 2026-09-30 15:03 UTCEPSS rescoreEPSS 1.1% · 64th percentile
  28. 2026-09-30 09:11 UTCOSV refresh
  29. 2026-09-27 13:48 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  30. 2026-09-26 15:58 UTCEPSS rescoreEPSS 1.1% · 63rd percentile
  31. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  32. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  33. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  34. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  35. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  36. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  37. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  38. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  39. 2026-09-11 15:40 UTCOSV refresh
  40. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  41. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  42. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  43. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  44. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  45. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  46. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  47. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  48. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  49. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  50. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  51. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  52. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  53. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  54. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  55. 2026-08-23 19:43 UTCEG score recompute
  56. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  57. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  58. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  59. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  60. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  61. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  62. 2026-08-17 12:49 UTCEG score recompute
  63. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  64. 2026-08-16 04:47 UTCEG score recompute
  65. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  66. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  67. 2026-08-14 03:21 UTCEG score recompute
  68. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  69. 2026-08-12 16:55 UTCEG score recompute
  70. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  71. 2026-08-11 15:57 UTCEG score recompute
  72. 2026-08-11 13:43 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  73. 2026-08-11 01:28 UTCEG score recompute
  74. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  75. 2026-08-09 15:10 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-44109?
CVE-2026-44109 is a critical-severity vulnerability; its CVE record was published on May 6, 2026. OpenClaw before 2026.4.15 contains an authentication bypass vulnerability in Feishu webhook and card-action validation that allows unauthenticated requests to reach command dispatch. Missing encryptKey configuration and blank callback tokens fail open instead of rejecting requests, enabling…
When was CVE-2026-44109 made public?
CVE-2026-44109 was made public on April 16, 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 May 6, 2026. EchelonGraph's copy of the record carries a last-modified date of May 7, 2026; the record at its source may have been updated since.
Is CVE-2026-44109 actively exploited?
CVE-2026-44109 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (53rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-44109?
CVE-2026-44109 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-44109?
A fix for CVE-2026-44109 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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