UnratedFix available
webkit2gtk3: Fix of 7 CVEs
Type: advisorySources: OSV
- CVE-2026-91747: use-after-free in the Skia GPU glyph atlas after a partial atlas update - CVE-2026-91740: uninitialized GPU resource read after a failed render task in Skia - CVE-2026-91733: missing flush failure handling in the Skia GPU backend - CVE-2026-17771: uninitialized texture padding read by Skia linear sampling
- Products
- webkit2gtk3, webkit2gtk3-devel, webkit2gtk3-jsc, webkit2gtk3-jsc-devel
- Affected versions
- Not specified
- Fixed versions
- 2.54.0-1.el9_6.tuxcare.els8
- CVEs
- CVE-2026-17771, CVE-2026-91733, CVE-2026-91740, CVE-2026-91747
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:50 UTC · Revision 1
Source evidence
- CVE-2026-91747: use-after-free in the Skia GPU glyph atlas after a partial atlas update - CVE-2026-91740: uninitialized GPU resource read after a failed render task in Skia - CVE-2026-91733: missing flush failure handling in the Skia GPU backend - CVE-2026-17771: uninitialized texture padding read by Skia linear sampling
osv:CLSA-2026-1790805563
webkit2gtk3
Fixed versions: 2.54.0-1.el9_6.tuxcare.els8
webkit2gtk3-devel
Fixed versions: 2.54.0-1.el9_6.tuxcare.els8
webkit2gtk3-jsc
Fixed versions: 2.54.0-1.el9_6.tuxcare.els8
webkit2gtk3-jsc-devel
Fixed versions: 2.54.0-1.el9_6.tuxcare.els8
Complete source record
{
"id": "e3cd9377700961dbfbbbc4f1fe8539acff881a92208cc2320eaa0f5dec3a22c4",
"url": "https://osv.dev/vulnerability/CLSA-2026-1790805563",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "webkit2gtk3: Fix of 7 CVEs",
"summary": "- CVE-2026-91747: use-after-free in the Skia GPU glyph atlas after a partial atlas update - CVE-2026-91740: uninitialized GPU resource read after a failed render task in Skia - CVE-2026-91733: missing flush failure handling in the Skia GPU backend - CVE-2026-17771: uninitialized texture padding read by Skia linear sampling",
"evidence": "osv:CLSA-2026-1790805563",
"products": [
{
"name": {
"value": "webkit2gtk3",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.54.0-1.el9_6.tuxcare.els8",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "webkit2gtk3-devel",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.54.0-1.el9_6.tuxcare.els8",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "webkit2gtk3-jsc",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.54.0-1.el9_6.tuxcare.els8",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "webkit2gtk3-jsc-devel",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "2.54.0-1.el9_6.tuxcare.els8",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1790805563",
"aliases": [
"CLSA-2026-1790805563"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.54.0-1.el9_6.tuxcare.els8"
}
]
}
],
"package": {
"name": "webkit2gtk3",
"purl": "pkg:rpm/tuxcare/webkit2gtk3?distro=almalinux-9.6",
"ecosystem": "TuxCare:AlmaLinux:9.6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1790805563.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.54.0-1.el9_6.tuxcare.els8"
}
]
}
],
"package": {
"name": "webkit2gtk3-devel",
"purl": "pkg:rpm/tuxcare/webkit2gtk3-devel?distro=almalinux-9.6",
"ecosystem": "TuxCare:AlmaLinux:9.6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1790805563.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.54.0-1.el9_6.tuxcare.els8"
}
]
}
],
"package": {
"name": "webkit2gtk3-jsc",
"purl": "pkg:rpm/tuxcare/webkit2gtk3-jsc?distro=almalinux-9.6",
"ecosystem": "TuxCare:AlmaLinux:9.6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1790805563.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.54.0-1.el9_6.tuxcare.els8"
}
]
}
],
"package": {
"name": "webkit2gtk3-jsc-devel",
"purl": "pkg:rpm/tuxcare/webkit2gtk3-jsc-devel?distro=almalinux-9.6",
"ecosystem": "TuxCare:AlmaLinux:9.6"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.6esu/CLSA-2026-1790805563.json"
}
}
],
"modified": "2026-10-26T09:43:30.753625806Z",
"provider": "osv",
"upstream": [
"CVE-2026-17771",
"CVE-2026-91733",
"CVE-2026-91740",
"CVE-2026-91747"
],
"references": [
"https://errata.tuxcare.com/els_os/tuxcare9.6esu/CLSA-2026-1790805563.html",
"https://nvd.nist.gov/vuln/detail/CVE-2026-17771",
"https://nvd.nist.gov/vuln/detail/CVE-2026-64778",
"https://nvd.nist.gov/vuln/detail/CVE-2026-64779",
"https://nvd.nist.gov/vuln/detail/CVE-2026-65351",
"https://nvd.nist.gov/vuln/detail/CVE-2026-91733",
"https://nvd.nist.gov/vuln/detail/CVE-2026-91740",
"https://nvd.nist.gov/vuln/detail/CVE-2026-91747"
]
},
"related_cves": [
{
"value": "CVE-2026-17771",
"evidence": "/upstream"
},
{
"value": "CVE-2026-91733",
"evidence": "/upstream"
},
{
"value": "CVE-2026-91740",
"evidence": "/upstream"
},
{
"value": "CVE-2026-91747",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 449965,
"published_at": "2026-10-06T11:54:11+00:00"
}