CVE-2025-67721

MEDIUM EPSS 28.2%
Published Dec 12, 20256mo ago · Modified Jun 17, 20262w ago
6.3 CVSS 4.0
Medium
Find Similar
Published Dec 12, 2025 6mo ago
Last Modified Jun 17, 2026 2w ago

Description

Aircompressor is a library with ports of the Snappy, LZO, LZ4, and Zstandard compression algorithms to Java. In versions 3.3 and below, incorrect handling of malformed data in Java-based decompressor implementations for Snappy and LZ4 allow remote attackers to read previous buffer contents via crafted compressed input. With certain crafted compressed inputs, elements from the output buffer can end up in the uncompressed output, potentially leaking sensitive data. This is relevant for applications that reuse the same output buffer to uncompress multiple inputs. This can be the case of a web server that allocates a fix-sized buffer for performance purposes. There is similar vulnerability in GHSA-cmp6-m4wj-q63q. This issue is fixed in version 3.4.

CVSS Details

Base Score
6.3
Exploitability
—
Impact
—
Vector string
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/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
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
28.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 2

CWE-125 Out-of-bounds Read Memory Safety
CWE-201

Affected Products 2

VendorProductVersionRange
airliftaircompressor* <2.0.3
airliftaircompressor*≥3.0  –  <3.4

References 3

  • github.com https://github.com/airlift/aircompressor/commit/f2b489b398779b40c1ee29ddb11d7edef54ddc15
    Patch
  • github.com https://github.com/airlift/aircompressor/commit/ff12c4d5757c9d6d1de3d39a10402f1f84f9b765
    Patch
  • github.com https://github.com/airlift/aircompressor/security/advisories/GHSA-vx9q-rhv9-3jvg
    MitigationVendor Advisory

Remediation

  • github.com https://github.com/airlift/aircompressor/commit/f2b489b398779b40c1ee29ddb11d7edef54ddc15
    Patch
  • github.com https://github.com/airlift/aircompressor/commit/ff12c4d5757c9d6d1de3d39a10402f1f84f9b765
    Patch