Vulnerability · Published Jul 17, 2026 · Assigned by mitre
CVE-2026-52584
High 7.1
In plain English
A high-severity stack buffer overflow in the jpeg-xl package (Debian). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 2% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.1High
Exploit odds (30 days)0.1%top 98.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Buffer Overflow vulnerability in libjxl v.0.11.2 and before allows a local attacker to obtain sensitive information via the DecodeImageAPNG function
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | jpeg-xl | no fix listed | DEBIAN-CVE-2026-52584 |
| Debian:13 | jpeg-xl | 0.11.2-0.1~deb13u3 | DEBIAN-CVE-2026-52584 |
| Debian:14 | jpeg-xl | 0.11.2-5.1 | DEBIAN-CVE-2026-52584 |
| Ubuntu:24.04:LTS | jpeg-xl | no fix listed | UBUNTU-CVE-2026-52584 |
| Ubuntu:26.04:LTS | jpeg-xl | no fix listed | UBUNTU-CVE-2026-52584 |
| Ubuntu:26.10 | jpeg-xl | no fix listed | UBUNTU-CVE-2026-52584 |
Affected products (as reported)
Weakness: CWE-121 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H