CVE-2026-41005

Katalog CVE

CVSS 9.0 · Critical EPSS 0,16%

Kerentanan Improper Verification of Cryptographic Signature. Skor CVSS 3.1 9.0 (Critical) menurut vmware.com.

Deskripsi (NVD)

Cloud Foundry UAA incorrectly treated XML encryption to the Service Provider (confidentiality) as a substitute for XML signatures from the Identity Provider (authenticity) in two SAML flows: the OAuth 2.0 SAML2 bearer grant (token endpoint) and browser SSO (ACS) when wantAssertionSigned is set to false. Assertions or responses that were unsigned but contained encrypted content could still be accepted. Encryption uses the SP's public key from published metadata, therefore, any party, not only a trusted IdP, can produce ciphertext UAA can decrypt; successful decryption therefore does not prove the IdP issued the message. Affected versions: Cloud Foundry UAA (uaa_release) 2.0.0 through 78.13.0. Cloud Foundry CF Deployment all versions through 56.1.0.

Rincian

Terbit di NVD

11 Juni 2026

Terakhir diubah

17 Juni 2026

Status NVD

Awaiting Analysis

CVSS 3.1

9.0 (Critical), sumber vmware.com
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-347: Improper Verification of Cryptographic Signature

EPSS (30 hari)

0,16% peluang dieksploitasi; lebih tinggi dari 4,9% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://www.cloudfoundry.org/blog/cve-2026-41005-uaa-accepts-saml-encrypted-assertions-authentication-bypass/