CVE-2026-102827: steveukx git-js · Command Injection
Affects steveukx git-jsSource CVE Database V5
Not known to be exploited · CVSS 8.1 High : upgrade to 4.0.0 soon.
Data as of 12 Nov 2026, 23:24 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 48% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 4.0.0
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 29 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
Public exploit code: GitHub proofs of concept
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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), GitHub proofs of concept, the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Upgrade git-js and simple-git to 4.0.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| steveukxgit-js | Affected
| Fixed in
|
npmsimple-gitpkg:npm/simple-gitOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade to git-js version 4.0.0 or later, where this vulnerability is fixed. No other mitigations are documented. Patch status is confirmed fixed in 4.0.0.
Description
CVE-2026-102827 is a command injection vulnerability in the steveukx git-js library prior to version 4.0.0. The issue arises because the default blockUnsafeOperationsPlugin does not properly handle unambiguous long-option abbreviations in Git commands, allowing attacker-controlled push arguments to bypass detection. This can lead to arbitrary command execution when git push is invoked with maliciously crafted arguments. The vulnerability is fixed in version 4.0.0.
References
- github.com/steveukx/git-js/security/advisories/GHSA-858h-whjf-mvg5 (opens in a new tab)
- github.com/steveukx/git-js/pull/1193 (opens in a new tab)
- github.com/steveukx/git-js/commit/98864c678444d9336357c844efa4fd5a7984c0d7 (opens in a new tab)
- github.com/steveukx/git-js/releases/tag/simple-git@4.0.0 (opens in a new tab)