CVE-2026-89045: medium-severity vulnerability in luben zstd-jni
zstd-jni 1.4.8-4 through 1.5.7-13 Denial of Service via Negative Length
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.1epss 0.2%
zstd-jni versions 1.4.8-4 through 1.5.7-13 fail to validate negative length parameters in ZstdInputStreamNoFinalizer.read(), allowing attackers to trigger infinite loops. Attackers can pass negative length values to cause the read method to spin indefinitely while holding the stream monitor, blocking all other threads from accessing the stream.
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Affected products
luben · zstd-jniRelated CVEs — luben zstd-jni
In the same product, most dangerous first.
CVE-2026-89046HIGHzstd-jni 1.5.5-6 through 1.5.7-13 Out-of-Bounds Read via Negative OffsetEPSS 0.7%CVE-2026-87795HIGHzstd-jni 1.2.0 through 1.5.7-13 Out-of-Bounds Read via ZstdDictCompressEPSS 0.6%CVE-2026-90560HIGHzstd-jni 1.2.0 through 1.5.7-13 Out-of-Bounds Read via ZstdDictDecompressEPSS 0.6%CVE-2026-90852MEDIUMluben zstd-jni Dictionary Sharing ZstdCompressCtx.java ZstdCompressCtx.loadDict use after freeEPSS 0.5%CVE-2026-87823HIGHzstd-jni 1.1.1 through 1.5.7-13 Out-of-Bounds Read via Direct ByteBuffer Frame-Size MethodsEPSS 0.4%CVE-2026-87824HIGHzstd-jni 1.3.3-1 through 1.5.7-13 Out-of-Bounds Read via Zstd.trainFromBufferDirectEPSS 0.4%
References
https://github.com/luben/zstd-jnihttps://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben/zstd/ZstdInputStreamNoFinalizer.java#L133https://github.com/luben/zstd-jni/commit/dd08685ef913a32e76fb27f43470035c06758646https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14https://github.com/luben/zstd-jni/security/advisories/GHSA-9jx2-gfp9-phfmhttps://www.vulncheck.com/advisories/zstd-jni-1.4.8-4-through-1.5.7-13-denial-of-service-via-negative-length