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CVE-2026-121967— Coder before 2.29.22, 2.34.13, 2.35.10, 2.36.8, 2.37.5, and 2.38.1 AI Gateway Path Traversal

Quick assessment

Affected
coder coder
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Coder 2.28.0（2.29.22 之前版本）、2.30.0（2.34.13 之前版本）、2.35.0（2.35.10 之前版本）、2.36.0（2.36.8 之前版本）、2.37.0（2.37.5 之前版本）以及 2.38.0（2.38.1 之前版本）在 AI Gateway 透传路由器中存在路径遍历漏洞。该漏洞表现为：路由器在将经过百分号编码的点号段（如 %2e%2e）转发至上游时，未对其进行拒绝处理。已认证用户可以利用白名单前缀，发送类似 %2e%2e 或 ..%2F 的路径，从而绕过限制，访问非预期的

CVSS 4.9 · Medium

Affected Version Matrix 12

VendorProduct Version RangeStatus
coder coder 2.37.0< 2.37.5 affected
2.37.5 unaffected
2.36.0< 2.36.8 affected
2.36.8 unaffected
2.35.0< 2.35.10 affected
2.35.10 unaffected
2.30.0< 2.34.13 affected
2.34.13 unaffected
… +4 more rows
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I. Basic Information for CVE-2026-121967

Vulnerability Information
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Vulnerability Title
Coder before 2.29.22, 2.34.13, 2.35.10, 2.36.8, 2.37.5, and 2.38.1 AI Gateway Path Traversal
Source: CVE Program / CVE List V5
Vulnerability Description
Coder 2.28.0 before 2.29.22, 2.30.0 before 2.34.13, 2.35.0 before 2.35.10, 2.36.0 before 2.36.8, 2.37.0 before 2.37.5, and 2.38.0 before 2.38.1 contains a path traversal vulnerability in the AI Gateway passthrough router, which forwards percent-encoded dot segments upstream without rejecting them. Authenticated users can send paths such as %2e%2e or ..%2F under allowlisted prefixes to reach unintended provider endpoints using the deployment's centrally managed provider key.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
coder coder 2.37.0 ~ 2.37.5 -
coder coder 2.36.0 ~ 2.36.8 -
coder coder 2.35.0 ~ 2.35.10 -
coder coder 2.30.0 ~ 2.34.13 -
coder coder 2.28.0 ~ 2.29.22 -
coder coder 2.38.0 ~ 2.38.1 -

II. Public POCs for CVE-2026-121967

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-121967

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Other References for CVE-2026-121967 (3)

IV. Related Vulnerabilities

Same product: coder
Same vendor: coder
Same weakness: CWE-22