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Fencer Vulns
medium 5.5

CVE-2023-22490 json

Git vulnerable to local clone-based data exfiltration with non-local transports

published 2023-02-14 3 y ago modified 2026-10-08 31 d ago also EUVD-2023-26634

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 53%
public exploits
0
none known

Summary

Git is a revision control system. Using a specially-crafted repository, Git prior to versions 2.39.2, 2.38.4, 2.37.6, 2.36.5, 2.35.7, 2.34.7, 2.33.7, 2.32.6, 2.31.7, and 2.30.8 can be tricked into using its local clone optimization even when using a non-local transport. Though Git will abort local clones whose source `$GIT_DIR/objects` directory contains symbolic links, the `objects` directory itself may still be a symbolic link. These two may be combined to include arbitrary files based on known paths on the victim's filesystem within the malicious repository's working copy, allowing for data exfiltration in a similar manner as CVE-2022-39253.

A fix has been prepared and will appear in v2.39.2 v2.38.4 v2.37.6 v2.36.5 v2.35.7 v2.34.7 v2.33.7 v2.32.6, v2.31.7 and v2.30.8. If upgrading is impractical, two short-term workarounds are available. Avoid cloning repositories from untrusted sources with `--recurse-submodules`. Instead, consider cloning repositories without recursively cloning their submodules, and instead run `git submodule update` at each layer. Before doing so, inspect each new `.gitmodules` file to ensure that it does not contain suspicious module URLs.

Patch / fix

  • git-scm git 2.30.8, 2.31.7, 2.32.6, 2.33.7, 2.34.7, 2.35.7, 2.36.5, 2.37.6, 2.38.4, 2.39.2
  • git Debian 14, Debian 13, Debian 12 1:2.39.2-1

debian advisories DEBIAN-CVE-2023-22490

  • git Ubuntu 18.04 LTS 1:2.17.1-1ubuntu0.16
  • git Ubuntu 20.04 LTS 1:2.25.1-1ubuntu3.10
  • git Ubuntu 22.04 LTS 1:2.34.1-1ubuntu1.8
  • git Ubuntu Pro 16.04 LTS 1:2.7.4-0ubuntu1.10+esm5

ubuntu advisories UBUNTU-CVE-2023-22490

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • git RHEL 9 2.39.3-1.el9_2
  • gitk RHEL 9 2.39.3-1.el9_2
  • gitweb RHEL 9 2.39.3-1.el9_2
  • git-all RHEL 9 2.39.3-1.el9_2
  • git-gui RHEL 9 2.39.3-1.el9_2
  • git-svn RHEL 9 2.39.3-1.el9_2
  • git-core RHEL 9 2.39.3-1.el9_2
  • perl-Git RHEL 9 2.39.3-1.el9_2

red hat advisories RHSA-2024:0407RHSA-2023:3245RHSA-2023:3246

  • git SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Real Time 15 SP3 +9 more 2.35.3-150300.10.24.1
  • git SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +7 more 2.26.2-27.66.1
  • git SLES for SAP 15 SP2, SLES for SAP 15 SP1, SLES 15 SP2-LTSS +5 more 2.26.2-150000.47.1

suse advisories SUSE-SU-2023:0430-1SUSE-SU-2023:0426-1SUSE-SU-2023:0418-1

  • git openSUSE Tumbleweed 2.39.2-1.1

opensuse advisories openSUSE-SU-2024:12698-1

  • git AlmaLinux 9 2.39.3-1.el9_2
  • gitk AlmaLinux 9 2.39.3-1.el9_2
  • gitweb AlmaLinux 9 2.39.3-1.el9_2
  • git-all AlmaLinux 9 2.39.3-1.el9_2
  • git-gui AlmaLinux 9 2.39.3-1.el9_2
  • git-svn AlmaLinux 9 2.39.3-1.el9_2
  • git-core AlmaLinux 9 2.39.3-1.el9_2
  • perl-Git AlmaLinux 9 2.39.3-1.el9_2

almalinux advisories ALSA-2023:3245ALSA-2023:3246

  • git Rocky Linux 8 2.39.3-1.el8_8

rocky linux advisories RLSA-2023:3246

  • git Alpine 3.14 2.32.6-r0
  • git Alpine 3.15 2.34.7-r0
  • git Alpine 3.16 2.36.5-r0
  • git Alpine 3.17 2.38.4-r0
  • git Alpine 3.24, Alpine 3.23, Alpine 3.22 +4 more 2.39.2-r0

alpine advisories ALPINE-CVE-2023-22490

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2023-22490 updated cvss 5.5

git: data exfiltration with maliciously crafted repository

  • Red Hat Enterprise Linux 6 git, gitk, gitweb, git-all, git-cvs, git-gui, +6 more Red Hat Enterprise Linux 7 git, gitk, git-hg, git-p4, gitweb, git-all, +12 more Red Hat JBoss Data Grid 7 git
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) git 2.39.3-1.el8_8, gitk 2.39.3-1.el8_8, gitweb 2.39.3-1.el8_8, git-all 2.39.3-1.el8_8, git-gui 2.39.3-1.el8_8, git-svn 2.39.3-1.el8_8, +8 more
    fixed: vendor fix RHSA-2023:3246
  • Red Hat Enterprise Linux AppStream (v. 9) git 2.39.3-1.el9_2, gitk 2.39.3-1.el9_2, gitweb 2.39.3-1.el9_2, git-all 2.39.3-1.el9_2, git-gui 2.39.3-1.el9_2, git-svn 2.39.3-1.el9_2, +8 more
    fixed: vendor fix RHSA-2023:3245
  • Red Hat Enterprise Linux AppStream EUS (v.8.6) git 2.31.8-1.el8_6, gitk 2.31.8-1.el8_6, gitweb 2.31.8-1.el8_6, git-all 2.31.8-1.el8_6, git-gui 2.31.8-1.el8_6, git-svn 2.31.8-1.el8_6, +8 more
    fixed: vendor fix RHSA-2024:0407

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 ICSA-24-046-11 updated cvss 5.5

Siemens SCALANCE XCM-/XRM-300

  • Siemens SCALANCE XCH328 (6GK5328-4TS01-2EC2) <V2.4 Siemens SCALANCE XCM324 (6GK5324-8TS01-2AC2) <V2.4 Siemens SCALANCE XCM328 (6GK5328-4TS01-2AC2) <V2.4 Siemens SCALANCE XCM332 (6GK5332-0GA01-2AC2) <V2.4 Siemens SCALANCE XRH334 (24 V DC, 8xFO, CC) (6GK5334-2TS01-2ER3) <V2.4 Siemens SCALANCE XRM334 (2x230 V AC, 8xFO) (6GK5334-2TS01-4AR3) <V2.4
    +5 more products
    Siemens SCALANCE XRM334 (2x230 V AC, 12xFO) (6GK5334-3TS01-4AR3) <V2.4 Siemens SCALANCE XRM334 (24 V DC, 8xFO) (6GK5334-2TS01-2AR3) <V2.4 Siemens SCALANCE XRM334 (24 V DC, 12xFO) (6GK5334-3TS01-2AR3) <V2.4 Siemens SCALANCE XRM334 (230 V AC, 8xFO) (6GK5334-2TS01-3AR3) <V2.4 Siemens SCALANCE XRM334 (230 V AC, 12xFO) (6GK5334-3TS01-3AR3) <V2.4
    affected: fixed in V2.4 support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
31 d ago

Exploit prediction

0.71% chance of exploitation in the next 30 days, higher than 53% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Affected products

  • git git

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access

References

Sources

Fencer Vulns 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.