CVE-2026-6951Public exploitNetwork attack vector

Remote code execution via --config bypass

Published Apr 25, 2026 · Updated Apr 25, 2026

Code injection in steveukx simple-git before 3.36.0 allows remote attackers to execute arbitrary code through crafted Git options. The options filter rejects -c but fails to treat the equivalent --config form as unsafe, allowing protocol.ext.allow=always to enable an ext:: transport command. Exploitation requires an embedding application to pass attacker-controlled input into the simple-git options argument; successful execution runs with that application's privileges.

CVSS severity9.8
Critical
EPSS probability0.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in steveukx simple-git before 3.36.0 allows remote attackers to execute arbitrary code through crafted Git options. The options filter rejects -c but fails to treat the equivalent --config form as unsafe, allowing protocol.ext.allow=always to enable an ext:: transport command. Exploitation requires an embedding application to pass attacker-controlled input into the simple-git options argument; successful execution runs with that application's privileges.

The record

CVE
CVE-2026-6951
Published
Apr 25, 2026
Updated
Apr 25, 2026
Vendor
Steve King
Product
simple-git
Classifications
CWE-94, T1202
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <3.36.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Steve King · simple-gitversion=0 <3.36.0

Published CVSS scores

8.8Red HatCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.2SnykCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
9.8SnykCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1202Indirect Command Execution

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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