4.6

CVE-2026-41073: RT: Spreadsheet downloads vulnerable to CSV/formula injection in Microsoft Excel and similar apps

Deferred
AliasesUBUNTU-CVE-2026-41073DEBIAN-CVE-2026-41073
Published 22-05-2026Last modified 23-05-2026

Vulnerability summary

CVE-2026-41073 is a medium (CVSS 4.6) vulnerability in bestpractical rt. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.3% of scored vulnerabilities.

Overall risk
18/100
0100
Low · default modelHow is this calculated?
CVSS score
4.6/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.29%
0%100%
Low · +0.12 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
USN-8506-1

Timeline

  1. 22-05-2026
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

RT is an open source, enterprise-grade issue and ticket tracking system. Versions prior to 5.0.10 and 6.0.0 through 6.0.2 contain a spreadsheet (CSV/formula) injection vulnerability. User-controlled data in spreadsheet exports is not sanitized before being written to the output file, which can cause spreadsheet applications to interpret crafted values as formulas or macros when the file is opened. This issue has been fixed in versions 5.0.10 and 6.0.3. If developers are unable to upgrade immediately, they can temporarily work around this issue by avoiding opening exported RT spreadsheet files directly in spreadsheet applications when the data may contain untrusted user input.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.29%

Chance of exploitation in the next 30 days

Percentile

20%

Versus all other CVEs

30-day change

Increase +0.12 pp

From 0.17% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian2 products
  • request-tracker4< 4.4.6+dfsg-1.1+deb12u4
  • request-tracker5< 5.0.3+dfsg-3~deb12u6 | < 5.0.7+dfsg-4+deb13u3 | < 5.0.10+dfsg-1
Ubuntu2 products
  • request-tracker4All versions (No fix recorded)
  • request-tracker5< 5.0.1+dfsg-1ubuntu1+esm2 | < 5.0.5+dfsg-2ubuntu0.1~esm2 | All versions (No fix recorded) | < 5.0.7+dfsg-6ubuntu0.1~esm1
Bestpractical1 product
  • rt< 5.0.10 | ≥ 6.0.0, < 6.0.3

3 vendors · 5 products

References

7 links