CVE-2026-42444
- Source
- https://cve.org/CVERecord?id=CVE-2026-42444
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42444.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-42444
- Aliases
-
- GHSA-7hqh-mq57-wjmq
- Published
- 2026-05-12T19:22:09Z
- Modified
- 2026-10-28T02:30:31Z
- Severity
-
- 3.3 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L CVSS Calculator
- Summary
- NanaZip: Unbounded resource consumption in NanaZip littlefs parser via attacker-controlled BlockCount
- Details
-
NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, a denial-of-service vulnerability exists in the littlefs filesystem image parser in NanaZip. The handler's Open method reads BlockCount directly from the attacker-controlled superblock without any validation against the actual file size or any upper-bound ceiling, then iterates BlockCount times, allocating a file-path entry per iteration. A crafted 44-byte littlefs image with BlockCount = 0xFFFFFFFF causes ~4 billion heap allocations, exhausting available memory. This vulnerability is fixed in 6.0.1698.0.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-770" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42444.json" }- References
Affected packages
Git / github.com/m2team/nanazip
Affected ranges
- Type
- GIT
- Repo
- https://github.com/m2team/nanazip
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "5.0.1250.0" }, { "fixed": "6.0.1698.0" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "cpe": "cpe:2.3:a:m2team:nanazip:*:*:*:*:*:*:*:*", "range": [ { "introduced": "5.0.1252.0" }, { "fixed": "6.0.1698.0" } ], "source": "CPE_RANGE" } ] }