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CVE-2023-26143

29
FAUCET Score

CVE-2023-26143 is a critical arbitrary argument injection vulnerability affecting versions of the 'blamer' package prior to 1.0.4. It arises from improper sanitization of user input and failure to use POSIX double-dash characters when passing arguments to the underlying 'git' binary via the blameByFile() API. This vulnerability has a CVSS score of 9.1 (CRITICAL), indicating it can be exploited remotely with low complexity, leading to high impact on integrity and availability. While there is no known active exploitation, public exploit code, or KEV listing, the vulnerability has garnered significant community discussion with 11 mentions.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.0.4CPE matchmatch criteria
cpe:2.3:a:blamer_project:blamer:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.92%
Probability of exploitation in next 30 days
EPSS Percentile
56.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0092 is in the 42nd percentile among its peer group of 36,862 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: blamerFixed in: 1.0.4

Vendor Advisories (1)

npmGHSA-6f9p-g466-f8v8medium

blamer vulnerable to Arbitrary Argument Injection via the blameByFile() API

Sep 19, 2023

References

gist.github.com / lirantal/14c3686370a86461f555d3f0703e02f9
ExploitThird Party Advisory
github.com / kucherenko/blamer/commit/0965877f115753371a2570f10a63c455d2b2cde3
Patch
security.snyk.io / vuln/SNYK-JS-BLAMER-5731318
ExploitThird Party Advisory