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CVE-2021-26541

31
FAUCET Score

CVE-2021-26541 describes a critical command injection vulnerability (CWE-78) in the gitlog function of the gitlog project's src/index.ts, affecting versions prior to 4.0.4. With a CVSS score of 9.8 (Critical), this vulnerability allows unauthenticated attackers to execute arbitrary commands remotely with low attack complexity, leading to complete compromise of confidentiality, integrity, and availability. Despite its high severity and FAUCET Risk Score of 90/100, there is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.0.4CPE matchmatch criteria
cpe:2.3:a:gitlog_project:gitlog:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.36%
Probability of exploitation in next 30 days
EPSS Percentile
91.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0536 is in the 86th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: gitlogFixed in: 4.0.4

Vendor Advisories (1)

npmGHSA-67mm-m3wx-j7frcritical

Command injection in gitlog

Apr 13, 2021

References

advisory.checkmarx.net / advisory/CX-2020-4301
ExploitThird Party Advisory
github.com / domharrington/node-gitlog/pull/65
PatchThird Party Advisory
npmjs.com / package/gitlog
ProductThird Party Advisory