CVE-2026-39958CWE-93

oma-topic: name Field in Topic Manifests (topic.json) May Allow CRLF Injection

Medium · published April 9, 2026

CVSS v4.0
5.2
EPSS
1%
Percentile
50.3
In the wild
Unconfirmed
What it is

oma is a package manager for AOSC OS. Prior to 1.25.2, oma-topics is responsible for fetching metadata for testing repositories (topics) named "Topic Manifests" ({mirror}/debs/manifest/topics.json) from remote repository servers, registering them as APT source entries. However, the name field in said metadata were not checked for transliteration. In this case, a malicious party may supply a malformed Topic Manifest, which may cause malicious APT source entries to be added to /etc/apt/sources.list.d/atm.list as oma-topics finishes fetching and registering metadata. This vulnerability is fixed in 1.25.2.

The record
Technical detail
CVSS v4.0
5.2 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H
EPSS
0.00644 · 50.3th percentile
Weakness
CWE-93 · Improper Neutralization of CRLF Sequences ('CRLF Injection')
Published
2026-04-09T16:28Z
EPSS history
Timeline
  • 09 APR 16:28Z
    oma-topic: name Field in Topic Manifests (topic.json) May Allow CRLF Injection
    cvelistv5