CVE-2026-69206

{"id": "CVE-2026-69206", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.2}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "http4s", "product": "http4s", "versions": [{"status": "affected", "version": "< 0.23.35"}, {"status": "affected", "version": ">= 1.0.0-M1, < 1.0.0-M47"}]}]}], "published": "2026-09-15T20:17:40.180", "references": [{"url": "https://github.com/http4s/http4s/commit/7f065101c45f3d86bc105e8fc6323c2c4a11471f", "source": "security-advisories@github.com"}, {"url": "https://github.com/http4s/http4s/releases/tag/v0.23.35", "source": "security-advisories@github.com"}, {"url": "https://github.com/http4s/http4s/releases/tag/v1.0.0-M47", "source": "security-advisories@github.com"}, {"url": "https://github.com/http4s/http4s/security/advisories/GHSA-9xww-74xv-gjfp", "source": "security-advisories@github.com"}], "vulnStatus": "Received", "weaknesses": [{"type": "Primary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-294"}]}], "descriptions": [{"lang": "en", "value": "Http4s is a Scala interface for HTTP services. Prior to 0.23.35 and 1.0.0-M47, DigestAuth replay protection records lastNc plus one instead of the highest nonce-count value it has accepted. When a legitimate client sends noncontiguous nc values because of parallel or retried requests, the stored counter remains below the accepted maximum, allowing a passive observer to replay a captured Authorization header multiple times. Successful replays execute authenticated requests, including state-changing operations, as the captured user. This issue is fixed in versions 0.23.35 and 1.0.0-M47."}], "lastModified": "2026-09-15T20:17:40.180", "sourceIdentifier": "security-advisories@github.com"}