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.
CVE-2026-16194
MEDIUMPre-NVD 6.36.3—Trending — 5 sources updated this weekElevated
EchelonGraph scoreHIGH 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
6.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 6.3Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.3
- EG Score
- 6.3(high)
- 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 computedSeverity63% × 45%Exploitation40% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 25.4%
- KEV
- Not listed
Published
July 18, 2026
Last Modified
July 20, 2026
Advisory Details (5)
Auto-updated Jul 18, 2026Patch 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/2.1.2github_commit Patch Available
commit ea47f3097eed (zhayujie/CowAgent)
Patch available: zhayujie/CowAgent 2.1.2 (contains commit ea47f3097eed)
https://github.com/zhayujie/CowAgent/commit/ea47f3097eed4f8295c4cb3d76ecb97e0f43d632github_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/2900generic
[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/2889Vendor 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 17× in last 7d / 17× 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.
- 2026-07-25 14:17 UTCEPSS rescore
- 2026-07-25 14:17 UTCEPSS rescore
- 2026-07-24 14:17 UTCEPSS rescore
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 03:05 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 17:50 UTCEG score recompute
- 2026-07-20 17:50 UTCGHSA enrichment
- 2026-07-20 17:08 UTCEPSS rescore
- 2026-07-20 16:36 UTCNVD updateCVSS v4 → 2.1
- 2026-07-20 14:32 UTCMITRE cvelistV5CVSS v4 → 5.3
- 2026-07-19 14:30 UTCEPSS rescore
- 2026-07-19 00:07 UTCEG score recompute
- 2026-07-19 00:05 UTCNVD updateCVSS v4 → 2.1
- 2026-07-18 21:25 UTCEG score recompute
- 2026-07-18 21:24 UTCMITRE cvelistV5first tracked
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Same CWE
10 shownCWE-918
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 25.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
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
Explore the affected products and dependency analysis for CVE-2026-16194
Is Your Infrastructure Affected by CVE-2026-16194?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.