PT-2026-61981 · Google · Tink-Android+1

CVE-2026-15432 · Publicado 2026-07-21 · Atualizado 2026-07-21

NVD

CVSS v4.0

8.2

Alta

Vetor base

AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

When verifying a mac with a ChunkedMacVerification object, Tink compares the resulting tag with non constant time comparison. This potentially allows an attacker to use timinig information as a side channel in order to get information how many bytes of a given tag match the correct tag. This in turn could allow to find a correct tag bytewise.

Correção

Enumeração de Fraquezas

CWE-208

Identificadores relacionados

CVE-2026-15432

Produtos afetados

Tink-Android

Tink-Java

Referências · 2

• https://github.com/tink-crypto/tink-java/issues/75 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-15432 · Nota de Segurança