CVE-2026-15432

HIGHPre-NVD 8.28.2—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 90% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.2Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.2
EG Score
8.2(medium)
EG Risk
37(Track)
EG Risk 37/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity82% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
10%
KEV
Not listed

Published

July 21, 2026

Last Modified

July 22, 2026

Advisory Details (1)

Auto-updated Jul 21, 2026
No patch confirmed yet.
generic

ChunkedMacVerification does non constant time comparison on Mac · Issue #75 · tink-crypto/tink-java · GitHub

https://github.com/tink-crypto/tink-java/issues/75

Vendor Advisories for CVE-2026-15432(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 17× in last 7d / 86× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 183 total refreshes for this CVE.

  1. 2026-09-11 14:52 UTCEPSS rescore
  2. 2026-09-11 09:36 UTCEPSS rescore
  3. 2026-09-11 09:04 UTCEG score recompute
  4. 2026-09-11 09:04 UTCGHSA enrichment
  5. 2026-09-10 09:34 UTCEPSS rescore
  6. 2026-09-09 11:29 UTCEG score recompute
  7. 2026-09-09 11:29 UTCGHSA enrichment
  8. 2026-09-08 22:00 UTCEPSS rescore
  9. 2026-09-07 22:37 UTCEG score recompute
  10. 2026-09-07 22:37 UTCGHSA enrichment
  11. 2026-09-07 16:01 UTCEPSS rescore
  12. 2026-09-06 13:47 UTCEPSS rescore
  13. 2026-09-06 10:57 UTCGHSA enrichment
  14. 2026-09-05 20:29 UTCEG score recompute
  15. 2026-09-05 20:29 UTCGHSA enrichment
  16. 2026-09-05 08:55 UTCEG score recompute
  17. 2026-09-05 08:55 UTCGHSA enrichment
  18. 2026-09-04 05:06 UTCEPSS rescore
  19. 2026-09-02 14:11 UTCEPSS rescore
  20. 2026-09-02 00:57 UTCEG score recompute
  21. 2026-09-02 00:57 UTCGHSA enrichment
  22. 2026-09-01 13:53 UTCEPSS rescore
  23. 2026-09-01 04:39 UTCEPSS rescore
  24. 2026-08-31 02:56 UTCEG score recompute
  25. 2026-08-31 02:56 UTCGHSA enrichment
Show 75 more
  1. 2026-08-30 19:17 UTCEPSS rescore
  2. 2026-08-30 15:20 UTCGHSA enrichment
  3. 2026-08-30 02:16 UTCEG score recompute
  4. 2026-08-30 02:16 UTCGHSA enrichment
  5. 2026-08-30 01:22 UTCEPSS rescore
  6. 2026-08-28 21:41 UTCEPSS rescore
  7. 2026-08-27 22:55 UTCEG score recompute
  8. 2026-08-27 22:55 UTCGHSA enrichment
  9. 2026-08-27 14:25 UTCEPSS rescore
  10. 2026-08-27 11:20 UTCGHSA enrichment
  11. 2026-08-26 21:28 UTCEG score recompute
  12. 2026-08-26 21:28 UTCGHSA enrichment
  13. 2026-08-26 14:46 UTCEPSS rescore
  14. 2026-08-26 05:56 UTCGHSA enrichment
  15. 2026-08-25 18:20 UTCGHSA enrichment
  16. 2026-08-25 06:43 UTCGHSA enrichment
  17. 2026-08-24 18:49 UTCEG score recompute
  18. 2026-08-24 18:49 UTCGHSA enrichment
  19. 2026-08-24 06:51 UTCGHSA enrichment
  20. 2026-08-23 19:16 UTCGHSA enrichment
  21. 2026-08-23 07:41 UTCGHSA enrichment
  22. 2026-08-22 20:06 UTCGHSA enrichment
  23. 2026-08-22 08:31 UTCEG score recompute
  24. 2026-08-22 08:31 UTCGHSA enrichment
  25. 2026-08-21 23:49 UTCEPSS rescore
  26. 2026-08-21 20:56 UTCGHSA enrichment
  27. 2026-08-21 09:21 UTCEG score recompute
  28. 2026-08-21 09:21 UTCGHSA enrichment
  29. 2026-08-20 22:55 UTCEPSS rescore
  30. 2026-08-20 21:46 UTCGHSA enrichment
  31. 2026-08-20 10:11 UTCGHSA enrichment
  32. 2026-08-19 22:36 UTCEG score recompute
  33. 2026-08-19 22:36 UTCGHSA enrichment
  34. 2026-08-19 17:03 UTCEPSS rescore
  35. 2026-08-19 07:18 UTCGHSA enrichment
  36. 2026-08-18 19:33 UTCEG score recompute
  37. 2026-08-18 19:33 UTCGHSA enrichment
  38. 2026-08-18 13:48 UTCEPSS rescore
  39. 2026-08-18 05:46 UTCGHSA enrichment
  40. 2026-08-17 17:33 UTCEG score recompute
  41. 2026-08-17 17:33 UTCGHSA enrichment
  42. 2026-08-17 13:47 UTCEPSS rescore
  43. 2026-08-17 05:50 UTCGHSA enrichment
  44. 2026-08-16 18:00 UTCEG score recompute
  45. 2026-08-16 18:00 UTCGHSA enrichment
  46. 2026-08-16 14:56 UTCEPSS rescore
  47. 2026-08-16 06:24 UTCEG score recompute
  48. 2026-08-16 06:24 UTCGHSA enrichment
  49. 2026-08-16 02:14 UTCEPSS rescore
  50. 2026-08-15 18:50 UTCGHSA enrichment
  51. 2026-08-15 07:15 UTCEG score recompute
  52. 2026-08-15 07:15 UTCGHSA enrichment
  53. 2026-08-15 01:30 UTCEPSS rescore
  54. 2026-08-14 19:00 UTCGHSA enrichment
  55. 2026-08-14 07:25 UTCEG score recompute
  56. 2026-08-14 07:25 UTCGHSA enrichment
  57. 2026-08-13 22:00 UTCEPSS rescore
  58. 2026-08-13 19:50 UTCGHSA enrichment
  59. 2026-08-13 08:15 UTCGHSA enrichment
  60. 2026-08-12 20:40 UTCEG score recompute
  61. 2026-08-12 20:40 UTCGHSA enrichment
  62. 2026-08-12 13:50 UTCEPSS rescore
  63. 2026-08-12 09:05 UTCGHSA enrichment
  64. 2026-08-11 21:29 UTCEG score recompute
  65. 2026-08-11 21:29 UTCGHSA enrichment
  66. 2026-08-11 13:42 UTCEPSS rescore
  67. 2026-08-11 09:54 UTCEG score recompute
  68. 2026-08-11 09:54 UTCGHSA enrichment
  69. 2026-08-11 00:00 UTCEPSS rescore
  70. 2026-08-10 22:19 UTCGHSA enrichment
  71. 2026-08-10 10:44 UTCGHSA enrichment
  72. 2026-08-09 23:09 UTCEG score recompute
  73. 2026-08-09 23:09 UTCGHSA enrichment
  74. 2026-08-09 13:46 UTCEPSS rescore
  75. 2026-08-09 11:34 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-15432?
CVE-2026-15432 is a high vulnerability published on July 21, 2026. 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…
When was CVE-2026-15432 disclosed?
CVE-2026-15432 was first published in the National Vulnerability Database on July 21, 2026, with the most recent update on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15432 actively exploited?
CVE-2026-15432 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 89.7% of all scored CVEs.
What is the CVSS score of CVE-2026-15432?
CVE-2026-15432 has a CVSS v3 base score of 8.2 (NVD).
How do I remediate CVE-2026-15432?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15432, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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