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CVE-2026-115905VulnerabilityPublished Updated

Rust zip: Through 9.0.4, ZipArchive treats Central Directory File Header filenames as authoritative while

Affects rust-zipSource GCVE Database

0
Authoritative record:CVE-2026-115905· Critical 10.0

Not known to be exploited · CVSS 10.0 Critical · fixed in 9.0.5 : patch rust-zip as a priority.

Data as of 28 Oct 2026, 22:42 UTC

CVSS 4.0 base score
10.0Critical
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 9.0.5
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:L

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 26 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10rust-zippkg:deb/ubuntu/rust-zip?arch=source&distro=stonkingOther threatsAffected
  • =5.1.1-3
  • =5.1.1+dfsg-1
Fixed in–
Ubuntu 26.04 LTSrust-zippkg:deb/ubuntu/rust-zip?arch=source&distro=resoluteOther threatsAffected
  • =2.5.0-1
  • =5.1.1-2
  • =5.1.1-3
Fixed in–
Ubuntu 24.04 LTSrust-zippkg:deb/ubuntu/rust-zip?arch=source&distro=nobleOther threatsAffected
  • =0.6.6-1
  • =0.6.6-2
Fixed in–
Ubuntu 22.04 LTSrust-zippkg:deb/ubuntu/rust-zip?arch=source&distro=jammyOther threatsAffected
  • =0.5.8-2
  • =0.5.13-1
Fixed in–
Ubuntu 20.04 LTSrust-zippkg:deb/ubuntu/rust-zip?arch=source&distro=focalOther threatsAffected
  • =0.5.0-1
  • =0.5.3-1
  • =0.5.3-2
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Upgrade rust-zip to version 9.0.5 or later, where this vulnerability is fixed. No other mitigation is indicated or required as the issue is resolved in the official patch.

Description

The Rust zip library (rust-zip) through version 9.0.4 has a vulnerability where ZipArchive treats Central Directory File Header filenames as authoritative, but ZipStreamReader extracts files using Local File Header filenames without reconciling the differences. This discrepancy allows a crafted ZIP archive to appear benign during inspection but cause the extractor to write files to attacker-chosen paths, potentially overwriting critical files. This issue is fixed in version 9.0.5.

References

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