How severe is CVE-2026-76221?

CVE-2026-76221 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-76221 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-76221?

CVE-2026-76221 affects Gitpython Project Gitpython. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-76221?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-76221 published?

CVE-2026-76221 was published on 2026-08-19 and last updated on 2026-09-02.

CVE-2026-76221

CVE-2026-76221 is a high-severity vulnerability in Gitpython Project Gitpython with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-74.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.7
EPSS exploit prediction: 1% (54th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-74
Affected product: Gitpython Project Gitpython
Published: 2026-08-19
Last modified: 2026-09-02

Description

GitPython before 3.1.58 contains a config-name injection vulnerability in the option-name validator that allows attackers to forge arbitrary git-config directives by injecting equals signs, hash symbols, and whitespace into option names. Attackers can inject malicious option names like 'sshCommand = touch /tmp/RCE #' to execute arbitrary commands via core.sshCommand or core.hooksPath on the next git operation.

Frequently asked questions

What is CVE-2026-76221?: GitPython before 3.1.58 contains a config-name injection vulnerability in the option-name validator that allows attackers to forge arbitrary git-config directives by injecting equals signs, hash symbols, and whitespace into option names. Attackers can inject malicious option names like 'sshCommand = touch /tmp/RCE #' to execute arbitrary commands via core.sshCommand or core.hooksPath on the next git operation.
How severe is CVE-2026-76221?: CVE-2026-76221 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-76221 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (54th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-76221?: CVE-2026-76221 affects Gitpython Project Gitpython. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-76221?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-76221 published?: CVE-2026-76221 was published on 2026-08-19 and last updated on 2026-09-02.

References

Affected products (1)

cpe:2.3:a:gitpython_project:gitpython:*:*:*:*:*:python:*:*

More vulnerabilities in Gitpython Project Gitpython

CVE-2026-78676 — Critical (CVSS 9.8): GitPython before 3.1.59 fails to safely re-serialize multi-line git-config values during write operations, corrupting…
CVE-2026-67324 — Critical (CVSS 9.8): GitPython 3.1.50 fails to recognize joined short-option forms such as -u<value> (the short form of…
CVE-2023-40267 — Critical (CVSS 9.8): GitPython before 3.1.32 does not block insecure non-multi options in clone and clone_from. NOTE: this issue exists…
CVE-2026-87817 — High (CVSS 8.8): GitPython before 3.1.60 fails to properly validate the git directory location, allowing attackers to impersonate the…
CVE-2026-76220 — High (CVSS 8.8): GitPython before 3.1.58 contains a command execution vulnerability in the check_unsafe_options guard that can be…
CVE-2026-73625 — High (CVSS 8.8): GitPython versions before 3.1.54 contain a remote code execution vulnerability in the check_unsafe_options guard that…

All CVEs affecting Gitpython Project Gitpython →

Other CWE-74 (Improper Neutralization of Special Elements (Injection)) vulnerabilities

CVE-2026-105135 — Critical (CVSS 10.0): A vulnerability has been found in InternLM MindSearch 0.1.0. This issue affects the function ExecutionAction.run of the…
CVE-2026-61732 — Critical (CVSS 10.0): Decepticon is an autonomous hacking agent for red teams. Versions prior to 1.1.17 wrap web crawl results — the output…
CVE-2026-94097 — Critical (CVSS 10.0): A vulnerability was determined in Netcore NBR200V2 1.3.241127.071246. This affects an unknown part of the file…
CVE-2026-20130 — Critical (CVSS 10.0): As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Identity Services Engine…
CVE-2026-82971 — Critical (CVSS 10.0): A vulnerability was determined in QVidium Opera11 3.3.2a26-Ax4x-opera11. This affects an unknown part of the file…
CVE-2026-54159 — Critical (CVSS 10.0): PrestaShop ps_facetedsearch is a module that adds layered navigation filters. From 3.0.0 until 4.0.4, the…

Browse all CWE-74 (Improper Neutralization of Special Elements (Injection)) vulnerabilities →