CVE-2026-34840
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Obejście uwierzytelnienia w OneUptime umożliwia atakującemu podszycie się pod innego użytkownika.
CVSS
8.1
EPSS
0.1%
Exploit
poc
Vendor
hackerbay
Opis źródłowy (NVD)
OneUptime is an open-source monitoring and observability platform. Prior to version 10.0.42, OneUptime's SAML SSO implementation (App/FeatureSet/Identity/Utils/SSO.ts) has decoupled signature verification and identity extraction. isSignatureValid() verifies the first <Signature> element in the XML DOM using xml-crypto, while getEmail() always reads from assertion[0] via xml2js. An attacker can prepend an unsigned assertion containing an arbitrary identity before a legitimately signed assertion, resulting in authentication bypass. This issue has been patched in version 10.0.42.
auth-bypass exploit
Brak patcha
Źródła i daty
| Źródło | Wartość |
|---|---|
| NVD – CVSS | 8.1 |
| CISA KEV (aktywnie wykorzystywane) | Nie |
| FIRST EPSS (prawdopodobieństwo exploita) | 0.1% |
| Opublikowano (NVD) | 2026-04-02 20:16:28 UTC |
| Ostatnia modyfikacja (NVD) | 2026-04-13 18:46:00 UTC |
Referencje
- https://github.com/OneUptime/oneuptime/commit/2fd7ede52f60444710628d6c1b34dee2ef9e57d1 (security-advisories@github.com) [Patch]
- https://github.com/OneUptime/oneuptime/releases/tag/10.0.42 (security-advisories@github.com) [Product, Release Notes]
- https://github.com/OneUptime/oneuptime/security/advisories/GHSA-5w5c-766x-265g (security-advisories@github.com) [Exploit, Mitigation, Vendor Advisory]