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CVE-2026-25922

authentik is an open-source identity provider. Prior to 2025.8.6, 2025.10.4, and 2025.12.4, when using a SAML Source that has the option Verify Assertion Signature under Verification Certificate enabled and not Verify Response Signature, or does not have the Encryption Certificate setting under Advanced Protocol settings configured, it was possible for an attacker to inject a malicious assertion before the signed assertion that authentik would use instead. authentik 2025.8.6, 2025.10.4, and 2025
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:0078bc1b6813cb41d8363bf8a7fa6bf37e1a870601fd31b0f7f0490c081defc5
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-287","description":"CWE-287: Improper Authentication","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:9f65fed1c4ee6d0e2d2fbde04d714d9086b7a8b74522493c442166e6904badc5 · sha256:121c5b91de4c544b… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-347","description":"CWE-347: Improper Verification of Cryptographic Signature","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:9f65fed1c4ee6d0e2d2fbde04d714d9086b7a8b74522493c442166e6904badc5 · sha256:121c5b91de4c544b… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"authentik","vendor":"goauthentik","versions":[{"status":"affected","version":"< 2025.8.6"},{"status":"affected","version":">= 2025.10.0-rc1, < 2025.10.4"},{"status":"affected","version":">= 2025.10.0-rc1, < 2025.12.4"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:9f65fed1c4ee6d0e2d2fbde04d714d9086b7a8b74522493c442166e6904badc5 · sha256:121c5b91de4c544b… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":8.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:9f65fed1c4ee6d0e2d2fbde04d714d9086b7a8b74522493c442166e6904badc5 · sha256:121c5b91de4c544b… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions
{"cweId":"CWE-287","description":"CWE-287: Improper Authentication","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:9f65fed1c4ee6d0e2d2fbde04d714d9086b7a8b74522493c442166e6904badc5 · sha256:121c5b91de4c544b… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-347","description":"CWE-347: Improper Verification of Cryptographic Signature","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:9f65fed1c4ee6d0e2d2fbde04d714d9086b7a8b74522493c442166e6904badc5 · sha256:121c5b91de4c544b… · /containers/cna/problemTypes/1/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/goauthentik/authentik/releases/tag/version%2F2025.10.4","tags":["x_refsource_MISC"],"url":"https://github.com/goauthentik/authentik/releases/tag/version%2F2025.10.4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f65fed1c4ee6d0e2d2fbde04d714d9086b7a8b74522493c442166e6904badc5 · sha256:121c5b91de4c544b… · /containers/cna/references/1
{"name":"https://github.com/goauthentik/authentik/releases/tag/version%2F2025.12.4","tags":["x_refsource_MISC"],"url":"https://github.com/goauthentik/authentik/releases/tag/version%2F2025.12.4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f65fed1c4ee6d0e2d2fbde04d714d9086b7a8b74522493c442166e6904badc5 · sha256:121c5b91de4c544b… · /containers/cna/references/2
{"name":"https://github.com/goauthentik/authentik/releases/tag/version%2F2025.8.6","tags":["x_refsource_MISC"],"url":"https://github.com/goauthentik/authentik/releases/tag/version%2F2025.8.6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f65fed1c4ee6d0e2d2fbde04d714d9086b7a8b74522493c442166e6904badc5 · sha256:121c5b91de4c544b… · /containers/cna/references/3
{"name":"https://github.com/goauthentik/authentik/security/advisories/GHSA-jh35-c4cc-wjm4","tags":["x_refsource_CONFIRM"],"url":"https://github.com/goauthentik/authentik/security/advisories/GHSA-jh35-c4cc-wjm4"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:9f65fed1c4ee6d0e2d2fbde04d714d9086b7a8b74522493c442166e6904badc5 · sha256:121c5b91de4c544b… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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