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CVE-2026-15432

Observable Timing Discrepancy in Tink-Java and Tink-Android ChunkedMacVerification PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Google / Tink-Javaaffected All releases before 1.21.0, including 1.21.0.
Google / Tink-Androidaffected All releases before 1.21.0, including 1.21.0.

CWE

CWE-208

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.