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Fencer Intel
critical 10.0

CVE-2026-115905 json

zip: Critical Parser Differential & Security Control Bypass via Dual-Header Inconsistencies (Zip Cloaking) Leading to Arbitrary File Overwrite & RCE

published 14d ago modified 7d ago also GHSA-m665-v7pm-7grj , EUVD-2026-109981

cvss
10.0
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 25%
public exploits
0
none known

Summary

zip is a zip library for Rust that supports reading and writing simple ZIP files. Through 9.0.4, ZipArchive treats Central Directory File Header filenames as authoritative while ZipStreamReader extracts using Local File Header filenames without reconciling the duplicate metadata in src/read/stream.rs. A crafted archive can therefore appear benign to a component that inspects the central directory but cause a streaming extractor to write a different attacker-selected path and content, potentially overwriting files used by a downstream service. This issue is fixed in version 9.0.5.

Patch / fix

  • crates.io zip 9.0.5
  • rust-keylime SLE Micro 5.5 0.2.10+12-150500.3.22.1
  • rust-keylime SLE Micro 5.4 0.2.10+12-150400.3.22.1

suse advisories SUSE-SU-2026:4931-1SUSE-SU-2026:4930-1

  • openai-codex openSUSE Tumbleweed 0.166.0-2.1
  • gleam openSUSE Tumbleweed 1.19.2-1.1
  • rust-keylime openSUSE Tumbleweed 0.2.10+12-1.1
  • python-uv openSUSE Tumbleweed 0.13.6-1.1

opensuse advisories openSUSE-SU-2026:12488-1openSUSE-SU-2026:12454-1openSUSE-SU-2026:12333-1openSUSE-SU-2026:12307-1

Is CVE-2026-115905 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-115905 updated cvss 8.1

zip2: zip: Critical Parser Differential & Security Control Bypass via Dual-Header Inconsistencies (Zip Cloaking) Leading to Arbitrary File Overwrite & RCE

  • Red Hat Ansible Automation Orchestrator 2026 ansible-automation-platform/automation-orchestrator-backend-rhel9 Red Hat Confidential Compute Attestation agent-sandbox/agent-sandbox-router, openshift-sandboxed-containers/osc-podvm-builder-rhel9
    affected: no fix available
  • Red Hat OpenShift Lightspeed openshift-lightspeed/lightspeed-to-dataverse-exporter-rhel9
    affected: no fix planned “Will not fix”
  • Red Hat Ansible Automation Platform 2 ansible-automation-platform-26/hub-rhel9, ansible-automation-platform-27/hub-rhel9, ansible-automation-platform-26/mcp-tools-rhel9, ansible-automation-platform-27/mcp-tools-rhel9, ansible-automation-platform-26/controller-rhel9, ansible-automation-platform-27/controller-rhel9, +5 more Red Hat Discovery 2 discovery/discovery-server-rhel9 Red Hat Enterprise Linux 8 thunderbird Red Hat Enterprise Linux 9 rust, cargo, clippy, firefox, rustfmt, rust-gdb, +11 more Red Hat Enterprise Linux 10 rust, firefox, thunderbird, keylime-agent-rust Red Hat Enterprise Linux AI (RHEL AI) 3 rust
    +4 more products
    Red Hat Enterprise Linux command line assistant rhel-cla/rhel-knowledge-bridge-rhel10 Red Hat OpenShift AI (RHOAI) rhoai/odh-feature-server-rhel9, rhoai/odh-ml-pipelines-runtime-generic-rhel9, rhoai/odh-model-registry-job-async-upload-rhel9 Red Hat Satellite 6 satellite/iop-vmaas-rhel9, satellite/foreman-mcp-server-rhel9, satellite/iop-advisor-engine-rhel9, satellite/iop-host-inventory-rhel9, satellite/iop-advisor-backend-rhel9, satellite/iop-vulnerability-engine-rhel9 Red Hat Trusted Profile Analyzer rhtpa/rhtpa-rhel10, rhtpa/rhtpa-trustification-service-rhel9
    affected: no fix available
  • Red Hat Pen Drive Powered by Red Hat Lightspeed pen-drive/pen-drive-scanner-rhel9
    not affected: component not present
  • Red Hat Ansible Automation Platform 2 ansible-automation-platform-26/gateway-rhel9, ansible-automation-platform-27/gateway-rhel9, ansible-automation-platform-24/lightspeed-rhel8, ansible-automation-platform-25/lightspeed-rhel8, ansible-automation-platform-26/de-minimal-rhel9, ansible-automation-platform-26/ee-minimal-rhel9, +13 more
    not affected: vulnerable code not in execute path
  • Red Hat Ansible Automation Platform Ansible Core 2 ansible-automation-platform/ee-minimal-rhel8, ansible-automation-platform/ee-minimal-rhel9, ansible-automation-platform-tech-preview/ee-minimal-rhel8, ansible-automation-platform-tech-preview/ee-minimal-rhel9 Red Hat Enterprise Linux 8 rls, rust, cargo, clippy, firefox, rustfmt, +9 more
    not affected: vulnerable code not present
  • Red Hat Enterprise Linux 9 goose, keylime-agent-rust Red Hat Enterprise Linux 10 goose
    not affected: vulnerable code not in execute path
  • Red Hat Hardened Images ruff, rust, openshell, rust-add-determinism
    not affected: component not present
show 1 more
  • Red Hat Quay 3 quay/quay-rhel8, quay/quay-rhel9
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
total
Assessed
7d ago

Exploit prediction

0.32% chance of exploitation in the next 30 days, higher than 25% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/zip-rs/zip2/security/advisories/GHSA-m665-v7pm-7grj referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 10.0 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
CNA 4.0 10.0 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected packages

ecosystem package affected fixed in
crates.io zip
<9.0.5
9.0.5

Affected products

  • zip-rs zip2

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-436 Interpretation Conflict

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.