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Fencer Intel
medium 6.5

CVE-2026-109350 json

Gitoxide gix-pack before 0.75.0 Denial of Service via OFS_DELTA Base Distance

published 28d ago modified 24d ago also EUVD-2026-97652

cvss
6.5
version 3.1, 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

Gitoxide gix-pack before 0.75.0 contains a denial of service vulnerability that allows malicious remotes to crash fetch operations by sending crafted thin-pack OFS_DELTA entries. Attackers can serve a thin pack with a REF_DELTA referencing an existing object followed by an OFS_DELTA whose base_distance exceeds pack_offset, triggering a panic in LookupRefDeltaObjectsIter that aborts the fetch process.

Patch / fix

  • GitoxideLabs gix-pack 0.75.0
  • rust hummingbird 1 1.99.1-1.1.hum1
  • cargo hummingbird 1 1.99.1-1.1.hum1
  • clippy hummingbird 1 1.99.1-1.1.hum1
  • rustfmt hummingbird 1 1.99.1-1.1.hum1
  • rust-gdb hummingbird 1 1.99.1-1.1.hum1
  • rust-src hummingbird 1 1.99.1-1.1.hum1
  • rust-lldb hummingbird 1 1.99.1-1.1.hum1
  • rust-analyzer hummingbird 1 1.99.1-1.1.hum1

red hat advisories RHSA-2026:83879RHSA-2026:83849

  • stgit openSUSE Leap 16.0 2.7.0-bp160.1.1
  • grok-build openSUSE Leap 16.0 1.0.45+git20260929.2bdd1d6-bp160.2.1
  • grok-build openSUSE Tumbleweed 1.0.45+git20260929.2bdd1d6-2.1
  • openai-codex openSUSE Tumbleweed 0.162.1-2.1

opensuse advisories openSUSE-SU-2026:22204-1openSUSE-SU-2026:22130-1openSUSE-SU-2026:12141-1openSUSE-SU-2026:12144-1

Is CVE-2026-109350 in your stack? 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-2026-109350 updated cvss 6.5

gix-pack: gix-pack: Denial of Service via malformed packfile delta entries

  • Red Hat Enterprise Linux 8 rls, rust, cargo, clippy, rustfmt, rust-gdb, +8 more Red Hat Enterprise Linux 9 rust, cargo, clippy, rustfmt, rust-gdb, rust-src, +9 more Red Hat Enterprise Linux 10 igvm 0.4.0-3.el10, rust 1.98.1-1.el10
    affected: workaround, no fix available “Fix deferred”
  • Red Hat Hardened Images rust 1.99.0-1.1.hum1, rust 1.99.1-1.1.hum1, cargo 1.99.0-1.1.hum1, cargo 1.99.1-1.1.hum1, clippy 1.99.0-1.1.hum1, clippy 1.99.1-1.1.hum1, +28 more
    fixed: vendor fix RHSA-2026:83849

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
no
Technical impact
partial
Assessed
27d 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/GitoxideLabs/gitoxide/security/advisories/GHSA-mpf5-465h-mr53 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CNA 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CNA 4.0 7.1 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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 products

  • GitoxideLabs gix-pack

Classification

Weakness

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.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.