CVE Explorer

CVE-2026-33875

Gematik Authenticator securely authenticates users for login to digital health applications. Versions prior to 4.16.0 are vulnerable to authentication flow hijacking, potentially allowing attackers to authenticate with the identities of victim users who click on a malicious deep link. Update Gematik Authenticator to version 4.16.0 or greater to receive a patch. There are no known workarounds.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7ff440530dec6f5eb06194e5b41914a52df4113332ec404bad9a229d1c3b986d

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"app-Authenticator","vendor":"gematik","versions":[{"status":"affected","version":"< 4.16.0"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:39ef172cf8a7e91d95106f4bdad56ce742c8e6524720a3792a25c8c3015d6ad9 · sha256:de4d9d763096cab2… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":9.3,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:39ef172cf8a7e91d95106f4bdad56ce742c8e6524720a3792a25c8c3015d6ad9 · sha256:de4d9d763096cab2… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-940","description":"CWE-940: Improper Verification of Source of a Communication Channel","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:39ef172cf8a7e91d95106f4bdad56ce742c8e6524720a3792a25c8c3015d6ad9 · sha256:de4d9d763096cab2… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/gematik/app-Authenticator/security/advisories/GHSA-qg87-cf56-2rmr","tags":["x_refsource_CONFIRM"],"url":"https://github.com/gematik/app-Authenticator/security/advisories/GHSA-qg87-cf56-2rmr"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:39ef172cf8a7e91d95106f4bdad56ce742c8e6524720a3792a25c8c3015d6ad9 · sha256:de4d9d763096cab2… · /containers/cna/references/0

{"url":"https://www.machinespirits.com/advisory/f41e56/"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:39ef172cf8a7e91d95106f4bdad56ce742c8e6524720a3792a25c8c3015d6ad9 · sha256:de4d9d763096cab2… · /containers/adp/1/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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