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    CVE-2026-118687

    Coder before 2.29.21, 2.30.0 before 2.34.12, 2.35.0 before 2.35.9, 2.36.0 before 2.36.7, and 2.37.0 before 2.37.4 does not validate the audience claim of GCE instance-identity JWTs at the POST /api/v2/workspaceagents/google-instance-identity endpoint. Attackers who obtain an unexpired format=full identity token minted for another relying party can replay it to obtain that workspace agent's session token, which remains valid until the workspace's next build.

    Published:Oct 28, 2026
    Last Modified:Oct 29, 2026
    EPS:Oct 28, 2026
    EPSS Score:0.00186
    CVSS Score:6.5

    Affected Products

    Vendor
    Coder
    Product
    Coder

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-441 Unintended Proxy or Intermediary

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-219 XML Routing Detour Attacks
    CAPEC-465 Transparent Proxy Abuse

    Related CVEs

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    CVE-2026-111929 (CVSS 6) — Coder from 2.30.0 before 2.34.8 contains an authorization bypass vulnerability in the provisioner daemon Downl…
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High