Cyber Resilience

CVE-2025-66411

Info Disclosure in Coder ≤ 2.26.5

Public PoCInfo Disclosure
Published
03 December 2025
Modified
13 February 2026
Patch / advisory
CVSS Score v3.1 7.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0021 11th percentile
Risk Priority 55 floored blend · peak EPSS

Summary

CVE-2025-66411 is a high-severity Insertion of Sensitive Information into Log File (CWE-532) vulnerability in Coder Coder. Its CVSS base score is 7.8 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Credentials In Files (T1552.001); ranked at the 11th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to AU-9 (Protection of Audit Information) and SI-2 (Flaw Remediation) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

Coder allows organizations to provision remote development environments via Terraform. Prior to 2.26.5, 2.27.7, and 2.28.4, Workspace Agent manifests containing sensitive values were logged in plaintext unsanitized. An attacker with limited local access to the Coder Workspace (VM, K8s Pod…

more

etc.) or a third-party system (SIEM, logging stack) could access those logs. This vulnerability is fixed in 2.26.5, 2.27.7, and 2.28.4.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1552.001 Credentials In Files Credential Access
Adversaries may search local file systems and remote file shares for files containing insecurely stored credentials.
Why these techniques?

Vulnerability (CWE-532) exposes sensitive values including credentials in plaintext logs on local system or logging infrastructure, directly enabling credential access from files.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

CVEs Like This One

CVE-2026-55431Same product: Coder Coder
CVE-2026-46354Same product: Coder Coder
CVE-2026-55427Same product: Coder Coder
CVE-2024-27918Same product: Coder Coder
CVE-2026-55437Same product: Coder Coder
CVE-2026-55078Same product: Coder Coder
CVE-2026-55075Same product: Coder Coder
CVE-2026-55079Same product: Coder Coder
CVE-2026-55432Same product: Coder Coder
CVE-2026-55429Same product: Coder Coder

Affected Assets

coder
coder
≤ 2.26.5 · 2.27.0 — 2.27.7 · 2.28.0 — 2.28.4

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
  • AU-9 Protection of Audit Information
  • CM-6 Configuration Settings
  • SI-2 Flaw Remediation
Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)

Mitigating Controls (NIST 800-53 r5) AI

prevent

Directly protects log files containing sensitive manifest values from unauthorized local or SIEM access.

prevent

Enforces secure logging configuration settings that exclude or sanitize sensitive values before they are written.

prevent

Requires prompt application of the vendor patches (2.26.5/2.27.7/2.28.4) that stop plaintext logging of sensitive data.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly prohibit writing sensitive data to logs; eliminating the weakness satisfies only one narrow slice of the control.

PR.PS-04 partial match
prevents

Log generation configuration can and should exclude sensitive data, but the control statement focuses on availability rather than content filtering.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.15 Logging mostly match
prevents

Requiring de-identification and privacy controls before logs leave the organization reduces the chance that sensitive data inadvertently captured in logs becomes exposed to external parties.

mitigates

By defining what records must be kept, where, and for how long, the control discourages the inadvertent inclusion of sensitive information in logs or other externally accessible files that fall outside the formal record system.

mitigates

Mandating deletion of temporary files and logs that may contain sensitive information prevents those artifacts from remaining accessible after the data is no longer needed.

A.8.11 Data masking partial match
mitigates

When log entries are produced from masked data sets, the control prevents the inadvertent insertion of sensitive values into externally accessible log files.

mitigates

DLP inspection of logs and file transfers can detect and block the inadvertent placement of sensitive tokens or credentials into externally accessible log files before they are written or transmitted.

prevents

Requiring restrictions on free-text fields and proper error-message handling stops developers from embedding or leaking sensitive data into logs or diagnostic output.

References