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CVE-2026-33055

tar-rs is a tar archive reading/writing library for Rust. Versions 0.4.44 and below have conditional logic that skips the PAX size header in cases where the base header size is nonzero. As part of CVE-2025-62518, the astral-tokio-tar project was changed to correctly honor PAX size headers in the case where it was different from the base header. This is almost the inverse of the astral-tokio-tar issue. Any discrepancy in how tar parsers honor file size can be used to create archives that appear d
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:b06105d11b0fe89864940e5194e34a50ca0f5ee2806f99e330076fc13937f1f5
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"tar-rs","vendor":"alexcrichton","versions":[{"status":"affected","version":"< 0.4.45"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:024b7a75fa0e1e40a2c6c7b502c1ba42fdf51ef439e8516477ddde6d6fe34b7a · sha256:91405d552c206b80… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:024b7a75fa0e1e40a2c6c7b502c1ba42fdf51ef439e8516477ddde6d6fe34b7a · sha256:91405d552c206b80… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-843","description":"CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:024b7a75fa0e1e40a2c6c7b502c1ba42fdf51ef439e8516477ddde6d6fe34b7a · sha256:91405d552c206b80… · /containers/cna/problemTypes/0/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/alexcrichton/tar-rs/commit/de1a5870e603758f430073688691165f21a33946","tags":["x_refsource_MISC"],"url":"https://github.com/alexcrichton/tar-rs/commit/de1a5870e603758f430073688691165f21a33946"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:024b7a75fa0e1e40a2c6c7b502c1ba42fdf51ef439e8516477ddde6d6fe34b7a · sha256:91405d552c206b80… · /containers/cna/references/1
{"name":"https://github.com/alexcrichton/tar-rs/security/advisories/GHSA-gchp-q4r4-x4ff","tags":["x_refsource_CONFIRM"],"url":"https://github.com/alexcrichton/tar-rs/security/advisories/GHSA-gchp-q4r4-x4ff"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:024b7a75fa0e1e40a2c6c7b502c1ba42fdf51ef439e8516477ddde6d6fe34b7a · sha256:91405d552c206b80… · /containers/cna/references/0
{"name":"https://www.cve.org/CVERecord?id=CVE-2025-62518","tags":["x_refsource_MISC"],"url":"https://www.cve.org/CVERecord?id=CVE-2025-62518"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:024b7a75fa0e1e40a2c6c7b502c1ba42fdf51ef439e8516477ddde6d6fe34b7a · sha256:91405d552c206b80… · /containers/cna/references/2

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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