{"id":"CVE-2026-39958","aliases":["EUVD-2026-20962","GHSA-86jc-7r6q-cr3f"],"status":"published","title":"oma-topic: name Field in Topic Manifests (topic.json) May Allow CRLF Injection","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.","severity":{"version":"4.0","score":5.2,"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00362,"percentile":0.30375,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-93"],"published":"2026-04-09T16:28:18Z","modified":"2026-11-11T02:49:00Z","products":[{"vendor":"aosc-dev","product":"oma"}],"references":[{"url":"https://github.com/AOSC-Dev/oma/security/advisories/GHSA-86jc-7r6q-cr3f","tags":["x_refsource_CONFIRM","advisory"]},{"url":"https://github.com/AOSC-Dev/oma/pull/733","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/AOSC-Dev/oma/commit/b361c0f219bbf91a684610c76210f71f093dbc18","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/AOSC-Dev/oma/releases/tag/v1.25.2","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39958.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-39958","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-39958","title":"oma-topic: name Field in Topic Manifests (topic.json) May Allow CRLF Injection","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.","status":"published","published":"2026-04-09T16:28:18.758Z","modified":"2026-04-13T20:08:17.849Z","cvss":[{"version":"4.0","score":5.2,"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","level":"medium","assessor":"cna"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"critical","assessor":"adp"}],"cwes":["CWE-93"],"updated_at":"2026-11-02T14:20:02.662847Z"}],"euvd":[{"id":"EUVD-2026-20962","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.","status":"published","published":"2026-04-09T16:28:18Z","modified":"2026-04-13T20:08:17Z","cvss":[{"version":"4.0","score":5.2,"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","level":"medium"}],"updated_at":"2026-11-02T19:24:27.052992Z"}],"nvd":[{"id":"CVE-2026-39958","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.","status":"published","published":"2026-04-09T17:16:30.257Z","modified":"2026-10-26T22:10:00.163Z","cvss":[{"version":"4.0","score":5.2,"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/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","level":"medium","assessor":"secondary"},{"version":"3.1","score":9.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-93"],"updated_at":"2026-11-02T14:12:13.902911Z"}],"osv":[{"id":"CVE-2026-39958","title":"oma-topic: name Field in Topic Manifests (topic.json) May Allow CRLF Injection","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.","status":"published","published":"2026-04-09T16:28:18.758Z","modified":"2026-11-11T10:47:30.501442327Z","cvss":[{"version":"4.0","score":5.2,"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","level":"medium"}],"cwes":["CWE-93"],"updated_at":"2026-11-11T03:21:28.618498Z"}]}}