Dashboard / CVE-2026-39958

CVE-2026-39958

MEDIUM
MEDIUM Priority: 0.02 BB Relevance: 35/100
Published: 2026-04-09 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network

CVSS Vector Breakdown

AV: Network
AC: High
PR: High
UI: Passive
S: X
AT: Present
VC: None
VI: None
VA: None

Description

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.

Weakness Classification (1)

References & Advisories (4)

Bug Bounty Relevance

35 / 100
✓ Network accessible

CVSS Score

5.2 / 10.0 v4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.36%
Raw Score 0.003560
Percentile 29.3%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00356
2026-10-28
0.00356

Intelligence Sources

nvd ref →

External Links