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No exploitation reportedFix available

CVE-2026-102828

simple-git unsafe-operation guard does not block trailer command configuration

No exploitation reported by the sources we read.

  • Published2026-09-29
  • Fixed in4.0.1
  • WeaknessCWE-184 · CWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

simple-git, an interface for running git commands in any node.js application, enables applications to execute Git operations from JavaScript. From 3.15.0 until 4.0.1, the default blockUnsafeOperationsPlugin does not classify trailer.<token>.cmd as unsafe configuration. An application that passes attacker-controlled values through SimpleGitOptions.config or inline -c arguments can therefore allow Git to invoke an attacker-selected shell command when git interpret-trailers processes the configured trailer. The command executes with the operating-system identity and permissions of the Node.js process. This issue is fixed in 4.0.1.

Timeline

dates in UTC
  1. 2026-09-2919:17CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-102828?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-102828?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Simple-git project simple-git
BranchAffectedFixed in
4.0≥ 3.15.0, < 4.0.14.0.1

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • CVE-2026-102828 Red Hat Product Security9 known affected

    simple-git: simple-git unsafe-operation guard does not block trailer command configuration

    keycloak-operator.redhat-00001.zip as a component of Red Hat Build of Keycloak · keycloak-operator.redhat-00003.zip as a component of Red Hat Build of Keycloak · rhbk-quarkus-dist.zip as a component of Red Hat Build of Keycloak · +6 more

Full record on NVD

Fix

  1. Update Simple-git project simple-git to 4.0.1
  2. Workaround from the vendor Red Hat Product Security CVE-2026-102828 · 9 productsApplications using simple-git can mitigate this issue by validating or restricting values passed into Git configuration options, and by not passing untrusted or user-controlled data into SimpleGitOptions.config or inline -c arguments. Applications that do not expose untrusted configuration or comma…
  3. No fix available, says the vendor Red Hat Product Security CVE-2026-102828 · 9 productsAffected

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CISA-ADPSSVC decisionnone2026-09-30
  • OpenCVESSVC decisionnone—
  • CNACVSS 4.09.2read 2026-10-23
  • NVDCVSS 3.19.8read 2026-10-23
  • CNAweakness (CWE)CWE-184, CWE-78read 2026-10-23
  • FIRST EPSSEPSS score0.4 %2026-10-22
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 4.0 vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/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
Published
2026-09-29
Last Modified
2026-10-08
NVD status
Analyzed

Frequently asked questions

What is CVE-2026-102828?

simple-git, an interface for running git commands in any node.js application, enables applications to execute Git operations from JavaScript. From 3.15.0 until 4.0.1, the default blockUnsafeOperationsPlugin does not classify trailer.<token>.cmd as unsafe configuration. An application that passes attacker-controlled values through SimpleGitOptions.config or inline -c arguments can therefore allow Git to invoke an attacker-selected shell command when git interpret-trailers processes the configured trailer. The command executes with the operating-system identity and permissions of the Node.js process. This issue is fixed in 4.0.1.

Is CVE-2026-102828 actively exploited?

Active exploitation of CVE-2026-102828 has not been confirmed. Its EPSS score was 0.4% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-102828?

CVE-2026-102828 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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