CVE-2026-42445: M2Team NanaZip · Uncontrolled Recursion
Affects M2Team NanaZipSource CVE Database V5
Not known to be exploited · CVSS 3.3 Low : upgrade to 6.0.1698.0 when convenient.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.0.1698.0
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:LExploitation evidence
Disclosed: evidence found.
CVE published 12 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade NanaZip and m2team/NanaZip to 6.0.1698.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| M2TeamNanaZip | Affected
| Fixed in
|
GitHubm2team/NanaZippkg:github/m2team/NanaZipOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should upgrade NanaZip to version 6.0.1698.0 or later, where this uncontrolled recursion vulnerability is fixed. Since the vulnerability is resolved in this version, applying the official update fully mitigates the risk. No additional mitigation steps are indicated.
Description
NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, an uncontrolled recursion vulnerability exists in the UFS/UFS2 filesystem image parser in NanaZip. The function GetAllPaths recurses into subdirectories without any depth limit or visited-inode tracking. A crafted UFS image with a deep directory tree or an inode cycle causes stack exhaustion, crashing the NanaZip process. This vulnerability is fixed in 6.0.1698.0.