AOSC oma up to 1.25.0 topics.json Name crlf injection
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.3 | $0-$5k | 0.09 |
Summary
A vulnerability was found in AOSC oma up to 1.25.0 and classified as problematic. The affected element is an unknown function of the file {mirror}/debs/manifest/topics.json. Executing a manipulation of the argument Name can lead to crlf injection. This vulnerability is handled as CVE-2026-39958. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.
Details
A vulnerability classified as critical was found in AOSC oma up to 1.25.0. This vulnerability affects an unknown code of the file {mirror}/debs/manifest/topics.json. The manipulation of the argument name with an unknown input leads to a crlf injection vulnerability. The CWE definition for the vulnerability is CWE-93. The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:
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 advisory is available at github.com. This vulnerability was named CVE-2026-39958 since 04/08/2026. The exploitation appears to be difficult. The attack can be initiated remotely. The exploitation needs additional levels of successful authentication. Technical details are known, but there is no available exploit.
By approaching the search of inurl:{mirror}/debs/manifest/topics.json it is possible to find vulnerable targets with Google Hacking.
Upgrading to version 1.25.1 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch b361c0f219bbf91a684610c76210f71f093dbc18 is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Product
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 6.6VulDB Meta Temp Score: 6.3
VulDB Base Score: 6.6
VulDB Temp Score: 6.3
VulDB Vector: 🔒
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Crlf injectionCWE: CWE-93 / CWE-74 / CWE-707
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
Google Hack: 🔒
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔒
Upgrade: oma 1.25.1
Patch: b361c0f219bbf91a684610c76210f71f093dbc18
Timeline
04/08/2026 CVE reserved04/09/2026 Advisory disclosed
04/09/2026 VulDB entry created
04/09/2026 VulDB entry last update
Sources
Advisory: GHSA-86jc-7r6q-cr3fStatus: Confirmed
CVE: CVE-2026-39958 (🔒)
GCVE (CVE): GCVE-0-2026-39958
GCVE (VulDB): GCVE-100-356626
Entry
Created: 04/09/2026 19:43Changes: 04/09/2026 19:43 (72)
Complete: 🔍
Cache ID: 216:5D8:103
If you want to get best quality of vulnerability data, you may have to visit VulDB.
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