Read the docs
TI-2026-35607 Aliases CVE-2026-48187GHSA-v95g-89m8-9p9r

Email with special content can lead to DoS

Priority LOW 25CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-400.

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00185 8th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
OTRS AGOTRS8.0.x; 2023.x; 2024.x; 2025.x; 2026.x – 2026.3.x—No fix listedCNA
OTRS AG((OTRS)) Community Edition——No fix listedCNA
  • OTRS VendorOTRS AG Affected 8.0.x; 2023.x; 2024.x; 2025.x; 2026.x – 2026.3.x Fixed in — No fix listed CNA
  • ((OTRS)) Community Edition VendorOTRS AG Affected — Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:otrs:otrs:*:*:*:*:community:*:*:*up to 6.0.32VulnerableOTRS AG
cpe:2.3:a:otrs:otrs:*:*:*:*:*:*:*:*7.0.0 – 8.0.37; 2023.0.0 to before 2026.4.1VulnerableOTRS AG
  • cpe:2.3:a:otrs:otrs:*:*:*:*:community:*:*:* Versions up to 6.0.32 Vulnerable ·OTRS AG
  • cpe:2.3:a:otrs:otrs:*:*:*:*:*:*:*:* Versions 7.0.0 – 8.0.37; 2023.0.0 to before 2026.4.1 Vulnerable ·OTRS AG

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-48187
  2. 2026-10-03 Alias added: GHSA-v95g-89m8-9p9r

References

Advisory 1

  • TI-2017-12458 In OTRS 6.0.x up to and including 6.0.1, OTRS 5.0.x up to and including 5.0.24, and OTRS… CVSS 3.0HIGH 8.8
  • TI-2026-35608 SQL Injection via MySQL Quote Method CVSS 3.1CRITICAL 9.1
  • TI-2023-04991 SSL Certificates are not checked for E-Mail Handling CVSS 3.1CRITICAL 9.1
  • TI-2022-04045 SQL Injection via OTRS Search API CVSS 3.1CRITICAL 9.8
  • TI-2017-12258 Code injection exists in Kernel/System/Spelling.pm in Open Ticket Request System (OTRS) 5… CVSS 3.0HIGH 8.8
  • TI-2017-06753 In Open Ticket Request System (OTRS) 3.3.x through 3.3.16, 4.x through 4.0.23, and 5.x… CVSS 3.0HIGH 8.8
See all 141 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences