CVE-2026-87823
Dashboard / Vulnerabilities / CVE-2026-87823
Summary: zstd-jni 1.1.1 through 1.5.7-13 Out-of-Bounds Read via Direct ByteBuffer Frame-Size Methods
Details: zstd-jni before 1.5.7-14 performs 32-bit signed bounds checks on three direct-ByteBuffer frame-size native methods, allowing out-of-bounds memory reads via negative or overflowing offsets. Attackers can supply negative offset values near Integer.MIN_VALUE to read unmapped memory, causing JVM termination or extracting arbitrary frame size data from unintended memory locations.
References: https://repo1.maven.org/maven2/com/github/luben/zstd-jni/, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/87xxx/CVE-2026-87823.json, https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14, https://github.com/luben/zstd-jni/security/advisories/GHSA-jfr6-9xqw-2g2q, https://nvd.nist.gov/vuln/detail/CVE-2026-87823, https://www.vulncheck.com/advisories/zstd-jni-1.1.1-through-1.5.7-13-out-of-bounds-read-via-direct-bytebuffer-frame-size-methods, https://github.com/luben/zstd-jni/commit/46dcb2a54c8b8f2ce2cad7187a7513f509c533ac, https://github.com/luben/zstd-jni/commit/d7a1c99322d5e1fc71932e722c0b5bb2fc525d3f, https://github.com/luben/zstd-jni, https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben/zstd/Zstd.java, https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/native/jni_zstd.c
Affected packages
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