Best Practical Request Tracker (RT) before 4.4.9, 5.0.9, and 6.0.2 allows CSV Injection via ticket values when TSV export is used.

published 2026-01-16 9 mo ago modified 2026-06-17 4 mo ago also EUVD-2026-2878

cvss: 2.6; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.2%; EPSS 0.2% chance of exploitation in 30 days, percentile 12%
public exploits: 0; none known

Patch / fix

fixed in 1 distros 1

bestpractical Request Tracker 4.4.9, 5.0.9, 6.0.2

request-tracker4 Debian 12 4.4.6+dfsg-1.1+deb12u3
request-tracker5 Debian 12 5.0.3+dfsg-3~deb12u4
request-tracker5 Debian 13 5.0.7+dfsg-4+deb13u1
request-tracker5 Debian 14 5.0.7+dfsg-5

debian advisories DEBIAN-CVE-2025-61873

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2025-61873 updated 2026-06-28 cvss 8.0

rt: CSV injection via ticket values when TSV export is used

Red Hat All currently supported Red Hat products
not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 9 mo ago (2026-01-16)

Exploit prediction

0.22% chance of exploitation in the next 30 days, higher than 12% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	2.6	CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:N/I:L/A:N

Affected products

bestpractical Request Tracker

Classification

Weakness

CWE-1236 Improper Neutralization of Formula Elements in a CSV File

References

docs.bestpractical.com /release-notes/rt/index.html

Sources

CVE List CVE-2025-61873
NVD CVE-2025-61873

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary