CVE Explorer

CVE-2026-15432

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.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e44dd5dff39fd06979b83ec2536df082ee40b7b4e1e6d5485c9ae63188255616

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","product":"Tink-Java","vendor":"Google","versions":[{"status":"affected","version":"All releases before 1.21.0, including 1.21.0."}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:f03c20447e5b7cdd23e69b4cdd6e1611b7e9cb62edcf82bdd706517f44594d31 · sha256:32c547fa097674b8… · /containers/cna/affected/0

{"defaultStatus":"unaffected","product":"Tink-Android","vendor":"Google","versions":[{"status":"affected","version":"All releases before 1.21.0, including 1.21.0."}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:f03c20447e5b7cdd23e69b4cdd6e1611b7e9cb62edcf82bdd706517f44594d31 · sha256:32c547fa097674b8… · /containers/cna/affected/1

Affected products and versions

2 source assertions

{"defaultStatus":"unaffected","product":"Tink-Java","vendor":"Google","versions":[{"status":"affected","version":"All releases before 1.21.0, including 1.21.0."}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:f03c20447e5b7cdd23e69b4cdd6e1611b7e9cb62edcf82bdd706517f44594d31 · sha256:32c547fa097674b8… · /containers/cna/affected/0

{"defaultStatus":"unaffected","product":"Tink-Android","vendor":"Google","versions":[{"status":"affected","version":"All releases before 1.21.0, including 1.21.0."}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:f03c20447e5b7cdd23e69b4cdd6e1611b7e9cb62edcf82bdd706517f44594d31 · sha256:32c547fa097674b8… · /containers/cna/affected/1

Provider-owned CVSS observations

1 source assertion

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"HIGH","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.2,"baseSeverity":"HIGH","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":…

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:f03c20447e5b7cdd23e69b4cdd6e1611b7e9cb62edcf82bdd706517f44594d31 · sha256:32c547fa097674b8… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion

{"cweId":"CWE-208","description":"CWE-208 Observable Timing Discrepancy","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:f03c20447e5b7cdd23e69b4cdd6e1611b7e9cb62edcf82bdd706517f44594d31 · sha256:32c547fa097674b8… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"url":"https://github.com/tink-crypto/tink-java/issues/75"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:f03c20447e5b7cdd23e69b4cdd6e1611b7e9cb62edcf82bdd706517f44594d31 · sha256:32c547fa097674b8… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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