CVE Explorer

CVE-2026-41569

authentik is an open-source identity provider. Prior to version 2026.2.3, the WS-Federation provider validates the user-supplied wreply parameter using a raw string prefix check rather than proper URL parsing. An attacker who can craft a login link can supply a wreply value on a different origin that passes the check (e.g. https://portal.example.com.evil.tld/), causing the victim's browser to POST the signed WS-Federation login response to attacker-controlled infrastructure. This issue has been

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7a2e7f92c8e3ad9b12f600f0ff659eb0e437c127a4346fd21ae9a4c4ddd23b35

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"authentik","vendor":"goauthentik","versions":[{"status":"affected","version":"< 2026.2.3"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:afa2533ba727402bf57809d71d708e5b09a237405219d81d75ed7a59596e2620 · sha256:b11ea039d4c37cf9… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:afa2533ba727402bf57809d71d708e5b09a237405219d81d75ed7a59596e2620 · sha256:b11ea039d4c37cf9… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-601","description":"CWE-601: URL Redirection to Untrusted Site ('Open Redirect')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:afa2533ba727402bf57809d71d708e5b09a237405219d81d75ed7a59596e2620 · sha256:b11ea039d4c37cf9… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"name":"https://github.com/goauthentik/authentik/security/advisories/GHSA-995q-72cw-cfw3","tags":["x_refsource_CONFIRM"],"url":"https://github.com/goauthentik/authentik/security/advisories/GHSA-995q-72cw-cfw3"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:afa2533ba727402bf57809d71d708e5b09a237405219d81d75ed7a59596e2620 · sha256:b11ea039d4c37cf9… · /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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