CVE-2026-22184 is a critical global buffer overflow vulnerability affecting zlib versions up to 1.3.1.2, specifically within the untgz utility. This flaw occurs when a user executes untgz with an excessively long archive name, leading to an out-of-bounds write. The core zlib compression library is not affected. Rated with a CVSS score of 9.8 (Critical), this vulnerability has a network attack vector, low complexity, and can result in high impacts to confidentiality, integrity, and availability. Its EPSS score is low, suggesting a low probability of exploitation in the wild. Currently, there is no known active exploitation, nor is public exploit code available on platforms like Metasploit or ExploitDB. Despite this, the vulnerability has garnered significant community discussion, with 12 mentions, indicating notable awareness among cybersecurity professionals.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 1.3.1.2CPE matchmatch criteria | cpe:2.3:a:zlib:zlib:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.