CVE-2026-35622

MEDIUMPre-NVD 5.95.9
EchelonGraph scoreMEDIUM confidence

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

Score 5.9 from GitHub Security Advisory (severity: MODERATE) published 2026-03-26. The CNA's CVSS baseline 5.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: the CNA's CVSS, EPSS, GitHub Security Advisory

Also known asEUVD-2026-21104 (ENISA EUVD) · GHSA-mp66-rf4f-mhh8 (GitHub Security Advisories)Source: ENISA EUVD

5.9EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 5.9Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

OpenClaw before 2026.3.22 contains an improper authentication verification vulnerability in Google Chat app-url webhook handling that accepts add-on principals outside intended deployment bindings. Attackers can bypass webhook authentication by providing non-deployment add-on principals to execute unauthorized actions through the Google Chat integration.

CVSS v3
5.9
EG Score
5.9MEDIUMmedium confidence
EG Risk
27
EG Risk 27/100

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)
Severity59% × 45%
Impact severity (EG Severity): CVSS 5.9 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.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (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.
EPSS PROB
0.3%
EPSS %ILE
23rd
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 (5.9): severity, escalated by confirmed exploitation. This CVE's 5.9 is its impact severity (EG Severity), not escalated.

EG Severity
5.9 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
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 every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade 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 every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (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

April 9, 2026

Last Modified

June 23, 2026

Advisory Details (4)

Auto-updated Aug 2, 2026
Patch available. Sources: github_commit, github.
Web page

OpenClaw < 2026.3.22 - Improper Authentication Verification in Google Chat Webhook | Advisories | VulnCheck

https://www.vulncheck.com/advisories/openclaw-improper-authentication-verification-in-google-chat-webhook
GitHub commit

commit a47722de7e3c (openclaw/openclaw)

Fix landed in openclaw/openclaw commit a47722de7e3c — awaiting tagged release

https://github.com/openclaw/openclaw/commit/a47722de7e3c9cbda8d5512747ca7e3bb8f6ee66
GitHub commit

commit 630f1479c44f (openclaw/openclaw)

Fix landed in openclaw/openclaw commit 630f1479c44f — awaiting tagged release

https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87
GitHub advisoryMentions a patch (unverified)

Google Chat app-url webhook auth accepted non-deployment add-on principals. · Advisory · openclaw/openclaw · GitHub

https://github.com/openclaw/openclaw/security/advisories/GHSA-mp66-rf4f-mhh8

Vendor Advisories for CVE-2026-35622(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 @ 2026.3.22 (fixes < 2026.3.22)—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 2026.3.22: fixed in 2026.3.22
—

Weakness Classification(2)

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 222 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 122 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% · 23rd percentile
  2. 2026-11-11 16:39 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  3. 2026-11-10 16:43 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  4. 2026-11-09 16:35 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  5. 2026-11-08 16:39 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  6. 2026-11-07 16:39 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  7. 2026-11-06 16:37 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  8. 2026-11-05 16:37 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  9. 2026-11-04 16:35 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  10. 2026-11-03 16:47 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  11. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  12. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  13. 2026-11-01 07:52 UTCGHSA enrichmentGHSA-mp66-rf4f-mhh8 · GitHub severity MODERATE · GitHub CVSS 5.9
  14. 2026-11-01 07:52 UTCEchelonGraph re-scored
  15. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  16. 2026-10-30 19:55 UTCOSV refresh
  17. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  18. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  19. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  20. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  21. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  22. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  23. 2026-10-25 14:32 UTCEchelonGraph re-scored
  24. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  25. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.4% · 36th percentile
Show 74 more
  1. 2026-10-23 03:04 UTCEchelonGraph re-scored
  2. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  3. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  4. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  5. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  6. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  7. 2026-10-18 03:44 UTCEchelonGraph re-scored
  8. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  9. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  10. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  11. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  12. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  13. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  14. 2026-10-12 16:11 UTCEchelonGraph re-scored
  15. 2026-10-11 19:53 UTCEchelonGraph re-scored
  16. 2026-10-11 17:07 UTCEchelonGraph re-scored
  17. 2026-10-11 14:33 UTCEchelonGraph re-scored
  18. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  19. 2026-10-10 21:03 UTCOSV refresh
  20. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  21. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  22. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  23. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  24. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  25. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  26. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  27. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  28. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  29. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  30. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  31. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  32. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  33. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  34. 2026-09-21 08:49 UTCOSV refresh
  35. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  36. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  37. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  38. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  39. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  40. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  41. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  42. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  43. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  44. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  45. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  46. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  47. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  48. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  49. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  50. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  51. 2026-09-02 06:44 UTCOSV refresh
  52. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  53. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  54. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  55. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  56. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  57. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  58. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  59. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  60. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  61. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  62. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  63. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  64. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  65. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  66. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  67. 2026-08-16 07:07 UTCEchelonGraph re-scored
  68. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  69. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  70. 2026-08-14 05:06 UTCEchelonGraph re-scored
  71. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  72. 2026-08-13 00:08 UTCEchelonGraph re-scored
  73. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.3% · 21st percentile
  74. 2026-08-12 01:34 UTCEchelonGraph re-scored

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-35622?
CVE-2026-35622 is a medium-severity vulnerability; its CVE record was published on April 9, 2026. OpenClaw before 2026.3.22 contains an improper authentication verification vulnerability in Google Chat app-url webhook handling that accepts add-on principals outside intended deployment bindings. Attackers can bypass webhook authentication by providing non-deployment add-on principals to execute…
When was CVE-2026-35622 made public?
CVE-2026-35622 was made public on March 24, 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 April 9, 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-2026-35622 actively exploited?
CVE-2026-35622 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (23rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-35622?
CVE-2026-35622 has a CVSS base score of 5.9 (the CNA's own assessment, by vulncheck; NVD's own analysis pending).
How do I remediate CVE-2026-35622?
A fix for CVE-2026-35622 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-35622 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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