CVE-2026-75856

CVSS 9.2 (critical) · published 2026-08-18

CodeWhale before 0.8.64 contains a server-side request forgery bypass vulnerability in DNS pinning logic that fails to prevent time-of-check-time-of-use attacks. Attackers can manipulate DNS responses to fail initial resolution checks and succeed on secondary requests, allowing requests to internal IP addresses and bypassing SSRF mitigations.

Weakness: CWE-918

Source: NVD CVE-2026-75856

References

• https://github.com/Hmbown/CodeWhale/commit/26de44a8bd5051f8f944ea60b2c37ae1d2b7d25e
• https://github.com/Hmbown/CodeWhale/security/advisories/GHSA-6v2g-fpxh-pmmh
• https://www.vulncheck.com/advisories/codewhale-before-ssrf-bypass-via-dns-pinning-toctou
• https://github.com/Hmbown/CodeWhale/security/advisories/GHSA-6v2g-fpxh-pmmh

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