CVE-2026-48187 json
Email with special content can lead to DoS
published 5mo ago modified 3mo ago also EUVD-2026-33553
- cvss
- 5.7
- 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 8%
- public exploits
- 0
- none known
Summary
An uncontrolled allocation of resources without limits or throttling in the e-mail handling in OTRS allows excessive allocation which may lead to the abortion of the webserver.This issue affects OTRS:
* 8.0.X * 2023.X * 2024.X * 2025.X * 2026.X before 2026.4.X
Please note that ((OTRS)) Community Edition 6.x, OTRS 7.x and products based on the ((OTRS)) Community Edition also very likely to be affected
Patch / fix
- otrs otrs 2026.4.1
Is CVE-2026-48187 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 5mo ago
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H |
Affected products
- OTRS AG OTRS
- OTRS AG ((OTRS)) Community Edition
Classification
References
-
otrs.com
/release-notes/otrs-security-advisory-2026-06/
vendor-advisory
Sources
- CVE List CVE-2026-48187
- NVD CVE-2026-48187
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