CVE-2026-48187: otrs ag otrs Uncontrolled Resource Consumption
Vulnerability summary
CVE-2026-48187 is a medium (CVSS 5.7) Uncontrolled Resource Consumption vulnerability in otrs ag otrs. EPSS estimates a 0.36% chance of exploitation in the next 30 days, higher than 28.2% of scored vulnerabilities.
Timeline
- 01-06-2026PublishedVulnerability first disclosed.
- 01-06-2026Last modifiedVulnerability information updated.
Description
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
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST5.7MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.36%
Chance of exploitation in the next 30 days
Percentile
28%
Versus all other CVEs
30-day change
+0.16 pp
From 0.20% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-400Uncontrolled Resource ConsumptionThe product does not properly control the allocation and maintenance of a limited resource.
- CWE-770Allocation of Resources Without Limits or ThrottlingThe product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.
Affected systems
Otrs1 product
- otrs≤ 6.0.32 | ≥ 7.0.0, ≤ 8.0.37 | ≥ 2023.0.0, < 2026.4.1
Otrs ag1 product
- otrs≥ 8.0.0, < 8.1.0 | ≥ 2023.0, < 2024.0 | ≥ 2024.0, < 2025.0 | ≥ 2025.0, < 2026.0 | ≥ 2026.x, ≤ 2026.3.x
2 vendors · 2 products
References
1 links- otrs.com/release-notes/otrs-security-advisory-2026-06/Vendor Advisory