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VulnerabilityPublished

CVE-2026-115907: zip-rs zip2 · Uncontrolled Resource Consumption

Affects zip-rs zip2Source CVE Database V5

0

Not known to be exploited · CVSS 7.5 High : upgrade to 9.0.0 soon.

Data as of 26 Oct 2026, 17:30 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 9.0.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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

Upgrade zip-rs zip2 to 9.0.0.

Affected software

ProductAffectedFixed in
zip-rszip2Affected
  • >=5.1.0 <9.0.0
Fixed in
  • 9.0.0

AI-suggested

Upgrade to zip-rs zip2 version 9.0.0 or later, where this vulnerability is fixed. No other mitigation is required as the fix addresses the root cause.

Description

CVE-2026-115907 is a high-severity vulnerability in the zip-rs zip2 library for Rust, affecting versions from 5.1.0 up to but not including 9.0.0. The issue involves uncontrolled resource consumption due to unbounded preallocation of output capacity based on attacker-controlled ZIP64 uncompressed sizes before validating the compressed stream. This can cause a panic due to capacity overflow in certain decoder paths, potentially terminating an archive-processing service. The vulnerability is fixed in version 9.0.0.

References

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