{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-69206", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-08-03T16:57:50.124Z", "datePublished": "2026-09-15T19:29:40.341Z", "dateUpdated": "2026-09-15T19:29:40.341Z"}, "containers": {"cna": {"title": "Http4s: DigestAuth allows replay of captured requests", "problemTypes": [{"descriptions": [{"cweId": "CWE-294", "lang": "en", "description": "CWE-294: Authentication Bypass by Capture-replay", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/http4s/http4s/security/advisories/GHSA-9xww-74xv-gjfp", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/http4s/http4s/security/advisories/GHSA-9xww-74xv-gjfp"}, {"name": "https://github.com/http4s/http4s/commit/7f065101c45f3d86bc105e8fc6323c2c4a11471f", "tags": ["x_refsource_MISC"], "url": "https://github.com/http4s/http4s/commit/7f065101c45f3d86bc105e8fc6323c2c4a11471f"}, {"name": "https://github.com/http4s/http4s/releases/tag/v0.23.35", "tags": ["x_refsource_MISC"], "url": "https://github.com/http4s/http4s/releases/tag/v0.23.35"}, {"name": "https://github.com/http4s/http4s/releases/tag/v1.0.0-M47", "tags": ["x_refsource_MISC"], "url": "https://github.com/http4s/http4s/releases/tag/v1.0.0-M47"}], "affected": [{"vendor": "http4s", "product": "http4s", "versions": [{"version": "< 0.23.35", "status": "affected"}, {"version": ">= 1.0.0-M1, < 1.0.0-M47", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-15T19:29:40.341Z"}, "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."}], "source": {"advisory": "GHSA-9xww-74xv-gjfp", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "http4s", "vendor": "http4s", "versions": [{"status": "affected", "version": "< 0.23.35"}, {"status": "affected", "version": ">= 1.0.0-M1, < 1.0.0-M47"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "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."}], "id": "CVE-2026-69206", "lastModified": "2026-09-15T20:17:40.180", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-15T20:17:40.180", "references": [{"source": "security-advisories@github.com", "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"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-294"}], "source": "security-advisories@github.com", "type": "Primary"}]}

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