High
libstb — security advisory
A vulnerability was found in Nothings stb up to 1.26. Impacted is the function stbtt_InitFont_internal in the library stb_truetype.h of the component TTF File Handler. Performing a manipulation results in out-of-bounds read. Remote exploitation of the attack is possible. The exploit has been made public and could be used. 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-2026-5314
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 17:48 UTC · Revision 2
Source evidence
A vulnerability was found in Nothings stb up to 1.26. Impacted is the function stbtt_InitFont_internal in the library stb_truetype.h of the component TTF File Handler. Performing a manipulation results in out-of-bounds read. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
osv:DEBIAN-CVE-2026-5314
libstb
Fixed versions: Not specified
libstb
Fixed versions: Not specified
libstb
Fixed versions: Not specified
Complete source record
{
"id": "175126f5fe1d00a810c877e510374681ebb193c6c0c094dc66afc2b26816c1ca",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2026-5314",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2026-5314",
"summary": "A vulnerability was found in Nothings stb up to 1.26. Impacted is the function stbtt_InitFont_internal in the library stb_truetype.h of the component TTF File Handler. Performing a manipulation results in out-of-bounds read. Remote exploitation of the attack is possible. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.",
"evidence": "osv:DEBIAN-CVE-2026-5314",
"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"
},
{
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"evidence": "/affected/0/versions"
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{
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"evidence": "/affected/0/versions"
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{
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{
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{
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],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2026-5314",
"aliases": [
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],
"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": [
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"events": [
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"package": {
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"purl": "pkg:deb/debian/libstb?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
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"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",
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],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5314.json"
},
"ecosystem_specific": {
"urgency": "unimportant"
}
},
{
"ranges": [
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"type": "ECOSYSTEM",
"events": [
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"package": {
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"purl": "pkg:deb/debian/libstb?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
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],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-5314.json"
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{
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"package": {
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"purl": "pkg:deb/debian/libstb?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
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],
"database_specific": {
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},
"ecosystem_specific": {
"urgency": "unimportant"
}
}
],
"modified": "2026-10-27T09:47:36.338739527Z",
"provider": "osv",
"upstream": [
"CVE-2026-5314"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2026-5314"
]
},
"related_cves": [
{
"value": "CVE-2026-5314",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 461262,
"published_at": "2026-04-01T23:17:03.81+00:00"
}