CVE-2026-16194

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-07-19. a secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: Elevated riskExposed: 0

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

A vulnerability was determined in zhayujie CowAgent up to 2.1.1. This affects the function WebFetch.execute of the file agent/tools/web_fetch/web_fetch.py. Executing a manipulation of the argument url can lead to server-side request forgery. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2.1.2 is able to mitigate this issue. This patch is called ea47f3097eed4f8295c4cb3d76ecb97e0f43d632. It is recommended to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

CVSS v3
6.3
EG Score
6.3(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
Severity63% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

July 18, 2026

Last Modified

July 20, 2026

Advisory Details (5)

Auto-updated Jul 18, 2026
Patch available. Sources: github_pr, github_commit, github_release.
generic

GitHub - zhayujie/CowAgent: Open-source super AI assistant & Agent Harness. Plans tasks, runs tools and skills, self-evolves with memory and knowledge. Multi-model, multi-channel. Lightweight, extensible, one-line install. (formerly chatgpt-on-wechat) · GitHub

https://github.com/zhayujie/CowAgent/
github_release Patch Available

2.1.2

Patch available: zhayujie/CowAgent 2.1.2

https://github.com/zhayujie/CowAgent/releases/tag/2.1.2
github_commit Patch Available

commit ea47f3097eed (zhayujie/CowAgent)

Patch available: zhayujie/CowAgent 2.1.2 (contains commit ea47f3097eed)

https://github.com/zhayujie/CowAgent/commit/ea47f3097eed4f8295c4cb3d76ecb97e0f43d632
github_pr Patch Available

fix(web_fetch): add SSRF guard for model-supplied URLs

Patch available: zhayujie/CowAgent 2.1.2 (PR #2900 merged 2026-06-17)

https://github.com/zhayujie/CowAgent/pull/2900
generic

[Security] Server-Side Request Forgery in built-in `web_fetch` tool allows access to special-use and internal HTTP destinations · Issue #2889 · zhayujie/CowAgent · GitHub

https://github.com/zhayujie/CowAgent/issues/2889

Vendor Advisories for CVE-2026-16194(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 62× 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 127 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-16194?
CVE-2026-16194 is a medium vulnerability published on July 18, 2026. A vulnerability was determined in zhayujie CowAgent up to 2.1.1. This affects the function WebFetch.execute of the file agent/tools/webfetch/webfetch.py. Executing a manipulation of the argument url can lead to server-side request forgery. The attack may be performed from remote. The exploit has…
When was CVE-2026-16194 disclosed?
CVE-2026-16194 was first published in the National Vulnerability Database on July 18, 2026, with the most recent update on July 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-16194 actively exploited?
CVE-2026-16194 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 61.1% of all scored CVEs.
What is the CVSS score of CVE-2026-16194?
CVE-2026-16194 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-16194?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-16194, 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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