CVE-2026-35670

MEDIUMPre-NVD 5.95.9—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.9 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 85% 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
5.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.9Exploit: None knownExposed: 0

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

OpenClaw before 2026.3.22 contains a webhook reply delivery vulnerability that allows attackers to rebind chat replies to unintended users by exploiting mutable username matching instead of stable numeric user identifiers. Attackers can manipulate username changes to redirect webhook-triggered replies to different users, bypassing the intended recipient binding recorded in webhook events.

CVSS v3
5.9
EG Score
5.9(medium)
EG Risk
27(Track)
EG Risk 27/100SSVC: 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
Severity59% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
15%
KEV
Not listed

Published

April 10, 2026

Last Modified

June 23, 2026

Advisory Details (4)

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

OpenClaw < 2026.3.22 - Webhook Reply Rebinding via Username Resolution in Synology Chat | Advisories | VulnCheck

https://www.vulncheck.com/advisories/openclaw-webhook-reply-rebinding-via-username-resolution-in-synology-chat
github_commit

commit 7ade3553b74e (openclaw/openclaw)

Fix landed in openclaw/openclaw commit 7ade3553b74e — awaiting tagged release

https://github.com/openclaw/openclaw/commit/7ade3553b74ee3f461c4acd216653d5ba411f455
github_commit

commit 630f1479c44f (openclaw/openclaw)

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

https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87
github Patch Available

Synology Chat reply delivery could be rebound through username-based user resolution. · Advisory · openclaw/openclaw · GitHub

https://github.com/openclaw/openclaw/security/advisories/GHSA-wv46-v6xc-2qhf

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
openclaw—2026.3.22—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 27× 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.

Showing the most recent 100 of 156 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-35670?
CVE-2026-35670 is a medium vulnerability published on April 10, 2026. OpenClaw before 2026.3.22 contains a webhook reply delivery vulnerability that allows attackers to rebind chat replies to unintended users by exploiting mutable username matching instead of stable numeric user identifiers. Attackers can manipulate username changes to redirect webhook-triggered…
When was CVE-2026-35670 disclosed?
CVE-2026-35670 was first published in the National Vulnerability Database on April 10, 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-2026-35670 actively exploited?
CVE-2026-35670 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 85.4% of all scored CVEs.
What is the CVSS score of CVE-2026-35670?
CVE-2026-35670 has a CVSS v4.0 base score of 5.9 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-35670?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-35670, 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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