{"items":[{"id":"NVI-00009198","kind":"vulnerability","title":"Authlib incomplete algorithm-confusion fix permits HMAC forgery with prefixed public keys","revision":3,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-7vr2-2fgp-9w7p","CVE-2026-114615"],"plain_summary":"GitHub lists this reviewed advisory for authlib. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-08be6fb1ba252b8d0e00e676a7281925"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-27T15:38:50.000Z","value":"7.4 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-ef5866b08d4d2a57a1d7143cf90d7ec4"},{"kind":"CVSS","as_of":"2026-10-29T14:50:19.033Z","value":"7.4 HIGH (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-0b55cecb7bdef5d827fa053a4a772747"},{"kind":"CVSS","as_of":"2026-10-29T14:50:19.033Z","value":"9.1 CRITICAL (3.1)","meaning":"nvd@nist.gov severity; no combined Null risk score.","source_id":"sr-0b55cecb7bdef5d827fa053a4a772747"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.213%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.11604. Missing scores are unknown.","source_id":"sr-08be6fb1ba252b8d0e00e676a7281925"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-ef5866b08d4d2a57a1d7143cf90d7ec4","url":"https://github.com/advisories/GHSA-7vr2-2fgp-9w7p","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-7vr2-2fgp-9w7p","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:51.534Z"},{"id":"sr-0b55cecb7bdef5d827fa053a4a772747","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114615","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-114615","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:52.895Z"},{"id":"sr-08be6fb1ba252b8d0e00e676a7281925","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-114615","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.266Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-ef5866b08d4d2a57a1d7143cf90d7ec4"],"technology":"authlib","known_exclusions":[],"conditions_summary":"## Summary\n\n`OctKey.import_key()` carries the only guard that stops an asymmetric public key from being used as an\nHMAC secret in `authlib.jose`. That guard is `raw_key.startswith(POSSIBLE_UNSAFE_KEYS)` — anchored at\nbyte 0 — while the loader that consumes the identical bytes on the asymmetric path\n(`cryptography.hazmat.primitives.serialization.load_pem_public_key` / `load_pem_x509_certificate`)\nskips anything before the `-----BEGIN` line. A PEM public key or X.509 certificate carrying **one\nleading byte** — a newline, a space, four spaces of indentation, a UTF-8 BOM, or a comment line — is\ntherefore not recognised, falls through, and becomes the HMAC secret. An attacker holding only the\nissuer's public key then mints an `HS256` token with arbitrary claims that `jwt.decode()` accepts as\nauthentic.\n\nThis is an incomplete fix of **CVE-2024-37568 / GHSA-5357-c2jx-v7qh**. That advisory's fix is exactly\nthis guard (`git log -S 'POSSIBLE_UNSAFE_KEYS' -- authlib/jose/rfc7518/oct_key.py` returns a single\ncommit, `3bea812` \"fix: prevent OctKey to import ssh/rsa/pem keys\", referencing issue #654), and the\noriginal attack works again unchanged whenever the stored PEM does not start at offset ","public_affected_ranges":[">= 1.3.1, <= 1.8.0"]}],"null_published_at":"2026-11-03T10:03:31.369Z","source_updated_at":"2026-10-27T15:38:50.000Z","source_disclosed_at":"2026-10-27T15:38:48.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:56:51.534Z"},{"id":"NVI-00009198","kind":"vulnerability","title":"Authlib incomplete algorithm-confusion fix permits HMAC forgery with prefixed public keys","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-7vr2-2fgp-9w7p","CVE-2026-114615"],"plain_summary":"GitHub lists this reviewed advisory for authlib. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-08be6fb1ba252b8d0e00e676a7281925"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-27T15:38:50.000Z","value":"7.4 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-ef5866b08d4d2a57a1d7143cf90d7ec4"},{"kind":"EPSS","as_of":"2026-11-01T12:00:16.000Z","value":"0.213%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.11604. Missing scores are unknown.","source_id":"sr-08be6fb1ba252b8d0e00e676a7281925"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-ef5866b08d4d2a57a1d7143cf90d7ec4","url":"https://github.com/advisories/GHSA-7vr2-2fgp-9w7p","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-7vr2-2fgp-9w7p","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:51.534Z"},{"id":"sr-08be6fb1ba252b8d0e00e676a7281925","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-114615","publisher":"FIRST EPSS","observed_at":"2026-11-01T14:28:32.266Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-ef5866b08d4d2a57a1d7143cf90d7ec4"],"technology":"authlib","known_exclusions":[],"conditions_summary":"## Summary\n\n`OctKey.import_key()` carries the only guard that stops an asymmetric public key from being used as an\nHMAC secret in `authlib.jose`. That guard is `raw_key.startswith(POSSIBLE_UNSAFE_KEYS)` — anchored at\nbyte 0 — while the loader that consumes the identical bytes on the asymmetric path\n(`cryptography.hazmat.primitives.serialization.load_pem_public_key` / `load_pem_x509_certificate`)\nskips anything before the `-----BEGIN` line. A PEM public key or X.509 certificate carrying **one\nleading byte** — a newline, a space, four spaces of indentation, a UTF-8 BOM, or a comment line — is\ntherefore not recognised, falls through, and becomes the HMAC secret. An attacker holding only the\nissuer's public key then mints an `HS256` token with arbitrary claims that `jwt.decode()` accepts as\nauthentic.\n\nThis is an incomplete fix of **CVE-2024-37568 / GHSA-5357-c2jx-v7qh**. That advisory's fix is exactly\nthis guard (`git log -S 'POSSIBLE_UNSAFE_KEYS' -- authlib/jose/rfc7518/oct_key.py` returns a single\ncommit, `3bea812` \"fix: prevent OctKey to import ssh/rsa/pem keys\", referencing issue #654), and the\noriginal attack works again unchanged whenever the stored PEM does not start at offset ","public_affected_ranges":[">= 1.3.1, <= 1.8.0"]}],"null_published_at":"2026-11-02T20:21:07.835Z","source_updated_at":"2026-10-27T15:38:50.000Z","source_disclosed_at":"2026-10-27T15:38:48.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:56:51.534Z"},{"id":"NVI-00009198","kind":"vulnerability","title":"Authlib incomplete algorithm-confusion fix permits HMAC forgery with prefixed public keys","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-7vr2-2fgp-9w7p","CVE-2026-114615"],"plain_summary":"GitHub lists this reviewed advisory for authlib. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-ef5866b08d4d2a57a1d7143cf90d7ec4"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-10-27T15:38:50.000Z","value":"7.4 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-ef5866b08d4d2a57a1d7143cf90d7ec4"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-ef5866b08d4d2a57a1d7143cf90d7ec4","url":"https://github.com/advisories/GHSA-7vr2-2fgp-9w7p","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-7vr2-2fgp-9w7p","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:51.534Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-ef5866b08d4d2a57a1d7143cf90d7ec4"],"technology":"authlib","known_exclusions":[],"conditions_summary":"## Summary\n\n`OctKey.import_key()` carries the only guard that stops an asymmetric public key from being used as an\nHMAC secret in `authlib.jose`. That guard is `raw_key.startswith(POSSIBLE_UNSAFE_KEYS)` — anchored at\nbyte 0 — while the loader that consumes the identical bytes on the asymmetric path\n(`cryptography.hazmat.primitives.serialization.load_pem_public_key` / `load_pem_x509_certificate`)\nskips anything before the `-----BEGIN` line. A PEM public key or X.509 certificate carrying **one\nleading byte** — a newline, a space, four spaces of indentation, a UTF-8 BOM, or a comment line — is\ntherefore not recognised, falls through, and becomes the HMAC secret. An attacker holding only the\nissuer's public key then mints an `HS256` token with arbitrary claims that `jwt.decode()` accepts as\nauthentic.\n\nThis is an incomplete fix of **CVE-2024-37568 / GHSA-5357-c2jx-v7qh**. That advisory's fix is exactly\nthis guard (`git log -S 'POSSIBLE_UNSAFE_KEYS' -- authlib/jose/rfc7518/oct_key.py` returns a single\ncommit, `3bea812` \"fix: prevent OctKey to import ssh/rsa/pem keys\", referencing issue #654), and the\noriginal attack works again unchanged whenever the stored PEM does not start at offset ","public_affected_ranges":[">= 1.3.1, <= 1.8.0"]}],"null_published_at":"2026-10-31T22:13:31.289Z","source_updated_at":"2026-10-27T15:38:50.000Z","source_disclosed_at":"2026-10-27T15:38:48.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-10-31T21:56:51.534Z"}],"next_cursor":null,"snapshot_revision":"42594"}