CVE-2026-90852luben zstd-jni Dictionary Sharing ZstdCompressCtx.java ZstdCompressCtx.loadDict use after free
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No exploitation reported and no EPSS estimate yet.
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A vulnerability has been found in luben zstd-jni up to 1.5.7-13. This vulnerability affects the function ZstdCompressCtx.loadDict of the file ZstdCompressCtx.java of the component Dictionary Sharing. Such manipulation leads to use after free. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.5.7-14 is able to resolve this issue. The name of the patch is a560131d7834598afd9cea6b7c107bc88e915936. The affected component should be upgraded. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.
- CVSS
- 7.3 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
- Weakness (CWE)
- CWE-416, CWE-119
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulDB
- NVD analysis
- Deferred
- Record last updated
- Sep 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
luben zstd-jni luben:zstd-jni | 1.5.7-13; 1.5.7-14 not affected | CNA record |
References
- https://vuldb.com/vuln/403407vdb-entry, technical-description
- https://vuldb.com/vuln/403407/ctisignature, permissions-required
- https://vuldb.com/cve/CVE-2026-90852third-party-advisory
- https://vuldb.com/submit/927022third-party-advisory
- https://github.com/luben/zstd-jni/issues/404exploit, issue-tracking
- https://github.com/luben/zstd-jni/commit/a560131d7834598afd9cea6b7c107bc88e915936patch
- https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14patch
- https://github.com/luben/zstd-jni/product
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.