High
libstb — security advisory
A vulnerability was determined in Nothings stb up to 1.26. The affected element is the function stbtt__buf_get8 in the library stb_truetype.h of the component TTF File Handler. Executing a manipulation can lead to out-of-bounds read. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
- Products
- libstb
- Affected versions
- 0.0~git20220908.8b5f1f3+ds-1, 0.0~git20230129.5736b15+ds-1, 0.0~git20230129.5736b15+ds-1.1, 0.0~git20230129.5736b15+ds-1.1~exp1, 0.0~git20230129.5736b15+ds-1.2, 0.0~git20240715.f7f20f39fe4f+ds-1, 0.0~git20241109.5c20573+ds-1, 0.0~git20250907.fede005+ds-1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-5315
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 17:48 UTC · Revision 2
Source evidence
A vulnerability was determined in Nothings stb up to 1.26. The affected element is the function stbtt__buf_get8 in the library stb_truetype.h of the component TTF File Handler. Executing a manipulation can lead to out-of-bounds read. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
osv:DEBIAN-CVE-2026-5315
libstb
Fixed versions: Not specified
libstb
Fixed versions: Not specified
libstb
Fixed versions: Not specified
Complete source record
{
"id": "359b5893904c0b4285ec6dceb5828abd6c1512a4b2300d9f56aec010bfa59cf0",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-5315",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-5315",
"summary": "A vulnerability was determined in Nothings stb up to 1.26. The affected element is the function stbtt__buf_get8 in the library stb_truetype.h of the component TTF File Handler. Executing a manipulation can lead to out-of-bounds read. The attack can be executed remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.",
"evidence": "osv:DEBIAN-CVE-2026-5315",
"products": [
{
"name": {
"value": "libstb",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.0~git20220908.8b5f1f3+ds-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.0~git20230129.5736b15+ds-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.0~git20230129.5736b15+ds-1.1",
"evidence": "/affected/0/versions"
},
{
"value": "0.0~git20230129.5736b15+ds-1.1~exp1",
"evidence": "/affected/0/versions"
},
{
"value": "0.0~git20230129.5736b15+ds-1.2",
"evidence": "/affected/0/versions"
},
{
"value": "0.0~git20240715.f7f20f39fe4f+ds-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.0~git20241109.5c20573+ds-1",
"evidence": "/affected/0/versions"
},
{
"value": "0.0~git20250907.fede005+ds-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "libstb",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.0~git20241109.5c20573+ds-1",
"evidence": "/affected/1/versions"
},
{
"value": "0.0~git20250907.fede005+ds-1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "libstb",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "0.0~git20241109.5c20573+ds-1",
"evidence": "/affected/2/versions"
},
{
"value": "0.0~git20250907.fede005+ds-1",
"evidence": "/affected/2/versions"
}
]
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2026-5315",
"aliases": [
"DEBIAN-CVE-2026-5315"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libstb",
"purl": "pkg:deb/debian/libstb?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"0.0~git20220908.8b5f1f3+ds-1",
"0.0~git20230129.5736b15+ds-1",
"0.0~git20230129.5736b15+ds-1.1",
"0.0~git20230129.5736b15+ds-1.1~exp1",
"0.0~git20230129.5736b15+ds-1.2",
"0.0~git20240715.f7f20f39fe4f+ds-1",
"0.0~git20241109.5c20573+ds-1",
"0.0~git20250907.fede005+ds-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5315.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libstb",
"purl": "pkg:deb/debian/libstb?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"0.0~git20241109.5c20573+ds-1",
"0.0~git20250907.fede005+ds-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5315.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libstb",
"purl": "pkg:deb/debian/libstb?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"0.0~git20241109.5c20573+ds-1",
"0.0~git20250907.fede005+ds-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5315.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
}
],
"modified": "2026-10-27T09:47:40.892864590Z",
"provider": "osv",
"upstream": [
"CVE-2026-5315"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-5315"
]
},
"related_cves": [
{
"value": "CVE-2026-5315",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 461237,
"published_at": "2026-04-02T00:16:25.153+00:00"
}