CVE-2026-90560

HIGHPre-NVD 8.28.2—
EchelonGraph scoreHIGH confidence

Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2026-09-12. A secondary CVSS source baseline 8.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
8.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 8.2Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

zstd-jni versions 1.2.0 through 1.5.7-13 contain an out-of-bounds read vulnerability in the ZstdDictDecompress constructor because offset and length arguments are never validated against the dictionary array bounds. Attackers can supply arbitrary offset or length values to read memory past the end of the supplied array, potentially causing JVM termination.

CVSS v3
8.2
EG Score
8.2HIGHhigh confidence
EG Risk
68
EG Risk 68/100CISA SSVC

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%
Exploitation40% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.6%
EPSS %ILE
47th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 12, 2026

Last Modified

September 24, 2026

Advisory Details (6)

Auto-updated Sep 12, 2026
Patch available. Sources: github_commit.
generic

zstd-jni 1.2.0 through 1.5.7-13 Out-of-Bounds Read via ZstdDictDecompress | Advisories | VulnCheck

https://www.vulncheck.com/advisories/zstd-jni-1.2.0-through-1.5.7-13-out-of-bounds-read-via-zstddictdecompress
generic

zstd-jni Missing Bounds Check on ZstdDictDecompress Constructor · Issue #405 · luben/zstd-jni · GitHub

https://github.com/luben/zstd-jni/issues/405
github_commit

commit b74ab242d640 (luben/zstd-jni)

Fix landed in luben/zstd-jni commit b74ab242d640 — awaiting tagged release

https://github.com/luben/zstd-jni/commit/b74ab242d640c40897e62aab4c744ddfad1f915f
generic

zstd-jni/src/main/java/com/github/luben/zstd/ZstdDictDecompress.java at v1.5.7-13 · luben/zstd-jni · GitHub

https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben/zstd/ZstdDictDecompress.java#L49
generic

zstd-jni/src/main/java/com/github/luben/zstd/ZstdDictDecompress.java at v1.2.0 · luben/zstd-jni · GitHub

https://github.com/luben/zstd-jni/blob/v1.2.0/src/main/java/com/github/luben/zstd/ZstdDictDecompress.java#L37
generic

GitHub - luben/zstd-jni: JNI binding for Zstd · GitHub

https://github.com/luben/zstd-jni

Vendor Advisories for CVE-2026-90560(2)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatzstd-jni2026-09-24redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
zstd-jni-java1.5.2-5+ds-3 ... 1.5.4-2+ds-3~exp4 (12 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
zstd-jni-java1.5.2-5+ds-7 ... 1.5.4-2+ds-3~exp4 (8 versions)
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
zstd-jni-java1.5.2-5+ds-7 ... 1.5.4-2+ds-3~exp4 (8 versions)
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 38× in last 7d / 107× 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 107 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-90560?
CVE-2026-90560 is a high vulnerability published on September 12, 2026. zstd-jni versions 1.2.0 through 1.5.7-13 contain an out-of-bounds read vulnerability in the ZstdDictDecompress constructor because offset and length arguments are never validated against the dictionary array bounds. Attackers can supply arbitrary offset or length values to read memory past the end…
When was CVE-2026-90560 disclosed?
CVE-2026-90560 was first published on September 12, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-90560 actively exploited?
CVE-2026-90560 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (47th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-90560?
CVE-2026-90560 has a CVSS base score of 8.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-90560?
A fix for CVE-2026-90560 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-90560 are linked in the Vendor Advisories panel on this page.

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