CVE-2026-15628

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreHIGH confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-07-14. a secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this weekElevated
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.

A security flaw has been discovered in zhayujie chatgpt-on-wechat CowAgent up to 2.1.1. This issue affects the function Vision._download_to_data_url of the file agent/tools/vision/vision.py of the component Vision Tool. Performing a manipulation of the argument image results in server-side request forgery. It is possible to initiate the attack remotely. The exploit has been released to the public and may be used for attacks. Upgrading to version 2.1.2 is capable of addressing this issue. The patch is named e85290cddcbb5ffc9c235927f4c92e5b4c3ec264. The affected component should be upgraded.

CVSS v3
6.3
EG Score
6.3(high)
EPSS
12.3%
KEV
Not listed

Published

July 14, 2026

Last Modified

July 14, 2026

Advisory Details (4)

Auto-updated Jul 14, 2026
Patch available. Sources: github_pr, github_commit, github_release.
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 e85290cddcbb (zhayujie/CowAgent)

Patch available: zhayujie/CowAgent 2.1.2 (contains commit e85290cddcbb)

https://github.com/zhayujie/CowAgent/commit/e85290cddcbb5ffc9c235927f4c92e5b4c3ec264
github_pr Patch Available

fix(security): SSRF protection for vision tool + path traversal guard for skill install

Patch available: zhayujie/CowAgent 2.1.2 (PR #2886 merged 2026-06-11)

https://github.com/zhayujie/CowAgent/pull/2886
generic

[Security] Server-Side Request Forgery in the built-in `vision` tool via unsanitized remote image URLs · Issue #2878 · zhayujie/CowAgent · GitHub

https://github.com/zhayujie/CowAgent/issues/2878

Vendor Advisories for CVE-2026-15628(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 11× in last 7d / 11× 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.

  1. 2026-07-15 23:27 UTCEG score recompute
  2. 2026-07-15 23:27 UTCGHSA enrichment
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 02:00 UTCEPSS rescore
  5. 2026-07-15 01:23 UTCEG score recompute
  6. 2026-07-15 01:23 UTCGHSA enrichment
  7. 2026-07-14 13:19 UTCNVD updateCVSS v4 → 2.1
  8. 2026-07-14 13:11 UTCMITRE cvelistV5CVSS v4 → 5.3
  9. 2026-07-14 05:15 UTCNVD updateCVSS v4 → 2.1
  10. 2026-07-14 03:21 UTCEG score recompute
  11. 2026-07-14 03:20 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-15628?
CVE-2026-15628 is a medium vulnerability published on July 14, 2026. A security flaw has been discovered in zhayujie chatgpt-on-wechat CowAgent up to 2.1.1. This issue affects the function Vision.downloadtodataurl of the file agent/tools/vision/vision.py of the component Vision Tool. Performing a manipulation of the argument image results in server-side request…
When was CVE-2026-15628 disclosed?
CVE-2026-15628 was first published in the National Vulnerability Database on July 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15628 actively exploited?
CVE-2026-15628 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 12.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-15628?
CVE-2026-15628 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-15628?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15628, 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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