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CVE-2025-27146

16
FAUCET Score

CVE-2025-27146 is a medium-severity vulnerability affecting matrix-appservice-irc versions up to 3.0.3, allowing arbitrary IRC command execution as the puppeted user. An attacker can inject commands that are executed as their own IRC user, with a CVSS score of 4.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N), indicating network access, low attack complexity, and a low impact on integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE. The vulnerability has been patched in matrix-appservice-irc version 3.0.4.

Impacted Technologies

VendorProductVersion(s)CPE
< 3.0.4CPE matchmatch criteria
cpe:2.3:a:matrix:matrix_irc_bridge:*:*:*:*:*:node.js:*:*

CVSS Data

CVSS version used by this source: 3.1

2.7LOW

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
1.2
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 41st percentile among its peer group of 21,974 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 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: matrix-appservice-ircFixed in: 3.0.4

Vendor Advisories (1)

npmGHSA-5mvm-89c9-9gm5low

Matrix IRC Bridge allows IRC command injection to own puppeted user

Feb 25, 2025

References

github.com / matrix-org/matrix-appservice-irc/commit/74f02c8e11f16ed1b355700092c1aa9c036a11bd
Patch
github.com / matrix-org/matrix-appservice-irc/security/advisories/GHSA-5mvm-89c9-9gm5
Vendor Advisory