UBUNTU-CVE-2026-87823

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Source
https://ubuntu.com/security/CVE-2026-87823
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-87823.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-87823
Upstream
Published
2026-09-09T15:17:00Z
Modified
2026-09-16T14:02:39Z
Severity
  • 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H CVSS Calculator
  • 8.8 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
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

Affected packages

Ubuntu:24.04:LTS / zstd-jni-java

Package

Name
zstd-jni-java
Purl
pkg:deb/ubuntu/zstd-jni-java?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.5.2-5+ds-3
1.5.2-5+ds-3build1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libzstd-jni-java",
            "binary_version":  "1.5.2-5+ds-3build1"
        },
        {
            "binary_name":  "libzstd-jni1",
            "binary_version":  "1.5.2-5+ds-3build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-87823.json"

Ubuntu:26.04:LTS / zstd-jni-java

Package

Name
zstd-jni-java
Purl
pkg:deb/ubuntu/zstd-jni-java?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.5.2-5+ds-7
1.5.2-5+ds-7build1
1.5.2-5+ds-7ubuntu1
1.5.2-5+ds-8

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "libzstd-jni-java",
            "binary_version":  "1.5.2-5+ds-8"
        },
        {
            "binary_name":  "libzstd-jni1",
            "binary_version":  "1.5.2-5+ds-8"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-87823.json"