Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
zhayujie CowAgent web_fetch.py WebFetch.execute server-side request forgery
AV AC AT PR UI VC VI VA CVSS EPSS %ile KEV
N L N L N L L L 2.1 .0033 26.0 —
AFFECTED
Product Versions Fixed
CowAgent 2.1.0 – 2.1.2
TIMELINE
Jul 18 EXPLOIT PUBLISHED — CVE-2026-16194 (zhayujie CowAgent). Public exploit reference added.
Jul 18 Reserved by VulDB
Jul 18 Published (CNA: VulDB)
Jul 20 RESCORED — CVE-2026-16194 (zhayujie CowAgent). CVSS 5.3 → 2.1 (NVD).
Description
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.
Lifecycle
Complete event history — 4 events, chronological
| Date | Event | Detail |
|---|
| July 18, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-16194 (zhayujie CowAgent). Public exploit reference added. |
| July 18, 2026 | Reserved | Reserved by VulDB |
| July 18, 2026 | Published | Published (CNA: VulDB) |
| July 20, 2026 | RESCORED | RESCORED — CVE-2026-16194 (zhayujie CowAgent). CVSS 5.3 → 2.1 (NVD). |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|
| zhayujie | CowAgent | — | 2.1.0 | 2.1.2 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-16194 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.