CVE-2026-15432

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Source

https://cve.org/CVERecord?id=CVE-2026-15432

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-15432.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-15432

Published

2026-07-21T16:42:12Z

Modified

2026-09-24T03:46:10Z

Severity

8.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

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

Details

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.

Database specific

{
    "cna_assigner":  "Google",
    "cwe_ids":  [
        "CWE-208"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/15xxx/CVE-2026-15432.json"
}

References

Affected packages

Git / github.com/tink-crypto/tink-java

Affected ranges

Type

GIT

Repo

https://github.com/tink-crypto/tink-java

Events

Introduced

Last Affected

0be571737dae79cccf9ba93b6da7a05ff70d7545

Database specific

Show details

{
    "cpe":  "cpe:2.3:a:google:tink_java:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "1.21.0"
        }
    ],
    "source":  "CPE_RANGE"
}

Affected versions

v1.*

v1.11.0

v1.12.0

v1.13.0

v1.14.0

v1.15.0

v1.16.0

v1.17.0

v1.18.0

v1.19.0

v1.20.0

v1.21.0

v1.8.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-15432.json"