CVE Explorer

CVE-2026-42446

NanaZip is an open source file archive. From 5.0.1252.0 to before 6.0.1698.0, a stack-based out-of-bounds read exists in the ZealFS filesystem image parser in NanaZip. The vulnerability is triggered when opening a crafted ZealFS v1 filesystem image. An attacker-controlled BitmapSize field in the file header drives an unbounded loop that reads past the end of a stack-allocated ZEALFS_V1_HEADER structure. This vulnerability is fixed in 6.0.1698.0.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:083e38b7258e3a1eab35b2f1854e40d8d91dd9cb00f42224f1b29cf93efae53c

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Affected products and versions

1 source assertion

{"product":"NanaZip","vendor":"M2Team","versions":[{"status":"affected","version":">= 5.0.1250.0, < 6.0.1698.0"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:8b85f35c38cb03ef3076301b8150e38ec7f8b4b43cc15209069f49816fdfd943 · sha256:c2cde7637539a44e… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":4.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:8b85f35c38cb03ef3076301b8150e38ec7f8b4b43cc15209069f49816fdfd943 · sha256:c2cde7637539a44e… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion

{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:8b85f35c38cb03ef3076301b8150e38ec7f8b4b43cc15209069f49816fdfd943 · sha256:c2cde7637539a44e… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion

{"name":"https://github.com/M2Team/NanaZip/security/advisories/GHSA-4c79-hfr4-mqv9","tags":["x_refsource_CONFIRM"],"url":"https://github.com/M2Team/NanaZip/security/advisories/GHSA-4c79-hfr4-mqv9"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:8b85f35c38cb03ef3076301b8150e38ec7f8b4b43cc15209069f49816fdfd943 · sha256:c2cde7637539a44e… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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