Webkit: webkitgtk / wpe webkit: out-of-bounds read and integer underflow vulnerability leading to dos
Priority MEDIUM 40CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 16 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.
Summary
A flaw was found in WebKitGTK and WPE WebKit. This vulnerability allows an out-of-bounds read and integer underflow, leading to a UIProcess crash (DoS) via a crafted payload to the GLib remote inspector server.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0062 49th percentileScored 2026-11-07
Fix Partial webkitgtk (The WebKitGTK Team): 2.50.2Red Hat: 11 advisoriesRed Hat: 16 fixed, 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| The WebKitGTK Team | webkitgtk | before 2.50.2 | 2.50.2 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | — | 2.50.3-2.el7_9 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8 | — | 2.50.3-1.el8_10 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support | — | 2.50.3-2.el8_2 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | — | 2.50.3-2.el8_4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | — | 2.50.3-2.el8_4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | — | 2.50.3-2.el8_6 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service | — | 2.50.3-2.el8_6 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | — | 2.50.3-2.el8_6 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | — | 2.50.3-2.el8_8 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | — | 2.50.3-2.el8_8 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9 | — | 2.50.3-1.el9_7 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | — | 2.50.3-1.el9_0 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | — | 2.50.3-1.el9_2 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | — | 2.50.3-1.el9_4 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | — | 2.50.3-1.el9_6 | Patch available | CNA |
| Red Hat | Red Hat Enterprise Linux 6 | — | — | No fix listed | CNA |
| Red Hat | Red Hat Enterprise Linux 7 | — | — | No fix listed | CNA |
- webkitgtk VendorThe WebKitGTK Team Affected before 2.50.2 Fixed in 2.50.2 Patch available CNA
- Red Hat Enterprise Linux 7 Extended Lifecycle Support VendorRed Hat Affected — Fixed in 2.50.3-2.el7_9 Patch available CNA
- Red Hat Enterprise Linux 8 VendorRed Hat Affected — Fixed in 2.50.3-1.el8_10 Patch available CNA
- Red Hat Enterprise Linux 8.2 Advanced Update Support VendorRed Hat Affected — Fixed in 2.50.3-2.el8_2 Patch available CNA
- Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support VendorRed Hat Affected — Fixed in 2.50.3-2.el8_4 Patch available CNA
- Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On VendorRed Hat Affected — Fixed in 2.50.3-2.el8_4 Patch available CNA
- Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support VendorRed Hat Affected — Fixed in 2.50.3-2.el8_6 Patch available CNA
- Red Hat Enterprise Linux 8.6 Telecommunications Update Service VendorRed Hat Affected — Fixed in 2.50.3-2.el8_6 Patch available CNA
- Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 2.50.3-2.el8_6 Patch available CNA
- Red Hat Enterprise Linux 8.8 Telecommunications Update Service VendorRed Hat Affected — Fixed in 2.50.3-2.el8_8 Patch available CNA
- Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 2.50.3-2.el8_8 Patch available CNA
- Red Hat Enterprise Linux 9 VendorRed Hat Affected — Fixed in 2.50.3-1.el9_7 Patch available CNA
- Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 2.50.3-1.el9_0 Patch available CNA
- Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions VendorRed Hat Affected — Fixed in 2.50.3-1.el9_2 Patch available CNA
- Red Hat Enterprise Linux 9.4 Extended Update Support VendorRed Hat Affected — Fixed in 2.50.3-1.el9_4 Patch available CNA
- Red Hat Enterprise Linux 9.6 Extended Update Support VendorRed Hat Affected — Fixed in 2.50.3-1.el9_6 Patch available CNA
- Red Hat Enterprise Linux 6 VendorRed Hat Affected — Fixed in — No fix listed CNA
- Red Hat Enterprise Linux 7 VendorRed Hat Affected — Fixed in — No fix listed CNA
CPE names CNA · 16
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:/o:redhat:rhel_els:7 | 7 | — | Red Hat |
| cpe:/a:redhat:enterprise_linux:8::appstream | 8 | — | Red Hat |
| cpe:/a:redhat:rhel_aus:8.2::appstream | 8.2 | — | Red Hat |
| cpe:/a:redhat:rhel_aus:8.4::appstream | 8.4 | — | Red Hat |
| cpe:/a:redhat:rhel_eus_long_life:8.4::appstream | 8.4 | — | Red Hat |
| cpe:/a:redhat:rhel_aus:8.6::appstream | 8.6 | — | Red Hat |
| cpe:/a:redhat:rhel_e4s:8.6::appstream | 8.6 | — | Red Hat |
| cpe:/a:redhat:rhel_tus:8.6::appstream | 8.6 | — | Red Hat |
| cpe:/a:redhat:rhel_e4s:8.8::appstream | 8.8 | — | Red Hat |
| cpe:/a:redhat:rhel_tus:8.8::appstream | 8.8 | — | Red Hat |
- cpe:/o:redhat:rhel_els:7 Versions 7 — ·Red Hat
- cpe:/a:redhat:enterprise_linux:8::appstream Versions 8 — ·Red Hat
- cpe:/a:redhat:rhel_aus:8.2::appstream Versions 8.2 — ·Red Hat
- cpe:/a:redhat:rhel_aus:8.4::appstream Versions 8.4 — ·Red Hat
- cpe:/a:redhat:rhel_eus_long_life:8.4::appstream Versions 8.4 — ·Red Hat
- cpe:/a:redhat:rhel_aus:8.6::appstream Versions 8.6 — ·Red Hat
- cpe:/a:redhat:rhel_e4s:8.6::appstream Versions 8.6 — ·Red Hat
- cpe:/a:redhat:rhel_tus:8.6::appstream Versions 8.6 — ·Red Hat
- cpe:/a:redhat:rhel_e4s:8.8::appstream Versions 8.8 — ·Red Hat
- cpe:/a:redhat:rhel_tus:8.8::appstream Versions 8.8 — ·Red Hat
Show 6 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:/a:redhat:enterprise_linux:9::appstream | 9 | — | Red Hat |
| cpe:/a:redhat:rhel_e4s:9.0::appstream | 9.0 | — | Red Hat |
| cpe:/a:redhat:rhel_e4s:9.2::appstream | 9.2 | — | Red Hat |
| cpe:/a:redhat:rhel_eus:9.4::appstream | 9.4 | — | Red Hat |
| cpe:/a:redhat:rhel_eus:9.6::appstream | 9.6 | — | Red Hat |
| cpe:/o:redhat:rhel_els:6 | 6 | — | Red Hat |
- cpe:/a:redhat:enterprise_linux:9::appstream Versions 9 — ·Red Hat
- cpe:/a:redhat:rhel_e4s:9.0::appstream Versions 9.0 — ·Red Hat
- cpe:/a:redhat:rhel_e4s:9.2::appstream Versions 9.2 — ·Red Hat
- cpe:/a:redhat:rhel_eus:9.4::appstream Versions 9.4 — ·Red Hat
- cpe:/a:redhat:rhel_eus:9.6::appstream Versions 9.6 — ·Red Hat
- cpe:/o:redhat:rhel_els:6 Versions 6 — ·Red Hat
Remediation
- Fix · CNA webkitgtk (The WebKitGTK Team) Fixed in 2.50.2
Red Hat 11 advisories
- RHSA-2025:23742 Released 2025-12-22 · Red Hat rating Importantwebkit2gtk3 security update
- Red Hat Enterprise Linux AppStream E4S (v.8.8) webkit2gtk3-2.50.3-2.el8_8, webkit2gtk3-devel-2.50.3-2.el8_8, webkit2gtk3-jsc-2.50.3-2.el8_8 +1
- Red Hat Enterprise Linux AppStream TUS (v.8.8) webkit2gtk3-2.50.3-2.el8_8, webkit2gtk3-devel-2.50.3-2.el8_8, webkit2gtk3-jsc-2.50.3-2.el8_8 +1
- RHSA-2025:23743 Released 2025-12-22 · Red Hat rating Importantwebkit2gtk3 security update
- Red Hat Enterprise Linux AppStream AUS (v.8.6) webkit2gtk3-2.50.3-2.el8_6, webkit2gtk3-devel-2.50.3-2.el8_6, webkit2gtk3-jsc-2.50.3-2.el8_6 +1
- Red Hat Enterprise Linux AppStream E4S (v.8.6) webkit2gtk3-2.50.3-2.el8_6, webkit2gtk3-devel-2.50.3-2.el8_6, webkit2gtk3-jsc-2.50.3-2.el8_6 +1
- Red Hat Enterprise Linux AppStream TUS (v.8.6) webkit2gtk3-2.50.3-2.el8_6, webkit2gtk3-devel-2.50.3-2.el8_6, webkit2gtk3-jsc-2.50.3-2.el8_6 +1
- RHSA-2025:23583 Released 2025-12-18 · Red Hat rating Importantwebkitgtk4 security update
- Red Hat Enterprise Linux Server (v. 7 ELS) webkitgtk4-2.50.3-2.el7_9, webkitgtk4-devel-2.50.3-2.el7_9, webkitgtk4-jsc-2.50.3-2.el7_9 +1
- Red Hat Enterprise Linux Server Optional (v. 7 ELS) webkitgtk4-devel-2.50.3-2.el7_9, webkitgtk4-doc-2.50.3-2.el7_9, webkitgtk4-jsc-devel-2.50.3-2.el7_9
Show 8 more Red Hat advisories
- RHSA-2025:23591 Released 2025-12-18 · Red Hat rating Importantwebkit2gtk3 security update
- Red Hat Enterprise Linux AppStream EUS (v.9.4) webkit2gtk3-2.50.3-1.el9_4, webkit2gtk3-devel-2.50.3-1.el9_4, webkit2gtk3-jsc-2.50.3-1.el9_4 +1
- RHSA-2025:23452 Released 2025-12-17 · Red Hat rating Importantwebkit2gtk3 security update
- Red Hat Enterprise Linux AppStream E4S (v.9.0) webkit2gtk3-2.50.3-1.el9_0, webkit2gtk3-devel-2.50.3-1.el9_0, webkit2gtk3-jsc-2.50.3-1.el9_0 +1
- RHSA-2025:23451 Released 2025-12-17 · Red Hat rating Importantwebkit2gtk3 security update
- Red Hat Enterprise Linux AppStream E4S (v.9.2) webkit2gtk3-2.50.3-1.el9_2, webkit2gtk3-devel-2.50.3-1.el9_2, webkit2gtk3-jsc-2.50.3-1.el9_2 +1
- RHSA-2025:23434 Released 2025-12-17 · Red Hat rating Importantwebkit2gtk3 security update
- Red Hat Enterprise Linux AppStream AUS (v.8.4) webkit2gtk3-2.50.3-2.el8_4, webkit2gtk3-devel-2.50.3-2.el8_4, webkit2gtk3-jsc-2.50.3-2.el8_4 +1
- Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) webkit2gtk3-2.50.3-2.el8_4, webkit2gtk3-devel-2.50.3-2.el8_4, webkit2gtk3-jsc-2.50.3-2.el8_4 +1
- RHSA-2025:23433 Released 2025-12-17 · Red Hat rating Importantwebkit2gtk3 security update
- Red Hat Enterprise Linux AppStream AUS (v. 8.2) webkit2gtk3-2.50.3-2.el8_2, webkit2gtk3-devel-2.50.3-2.el8_2, webkit2gtk3-jsc-2.50.3-2.el8_2 +1
- RHSA-2025:23110 Released 2025-12-11 · Red Hat rating Importantwebkit2gtk3 security update
- Red Hat Enterprise Linux AppStream EUS (v.9.6) webkit2gtk3-2.50.3-1.el9_6, webkit2gtk3-devel-2.50.3-1.el9_6, webkit2gtk3-jsc-2.50.3-1.el9_6 +1
- RHSA-2025:22790 Released 2025-12-08 · Red Hat rating Importantwebkit2gtk3 security update
- Red Hat Enterprise Linux AppStream (v. 9) webkit2gtk3-2.50.3-1.el9_7, webkit2gtk3-devel-2.50.3-1.el9_7, webkit2gtk3-jsc-2.50.3-1.el9_7 +1
- RHSA-2025:22789 Released 2025-12-08 · Red Hat rating Importantwebkit2gtk3 security update
- Red Hat Enterprise Linux AppStream (v. 8) webkit2gtk3-2.50.3-1.el8_10, webkit2gtk3-devel-2.50.3-1.el8_10, webkit2gtk3-jsc-2.50.3-1.el8_10 +1
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2025:22789 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2025:22790 |
| Red Hat Enterprise Linux AppStream AUS (v. 8.2) | Fixed | RHSA-2025:23433 |
| Red Hat Enterprise Linux AppStream AUS (v.8.4) | Fixed | RHSA-2025:23434 |
| Red Hat Enterprise Linux AppStream AUS (v.8.6) | Fixed | RHSA-2025:23743 |
| Red Hat Enterprise Linux AppStream E4S (v.8.6) | Fixed | RHSA-2025:23743 |
| Red Hat Enterprise Linux AppStream E4S (v.8.8) | Fixed | RHSA-2025:23742 |
| Red Hat Enterprise Linux AppStream E4S (v.9.0) | Fixed | RHSA-2025:23452 |
| Red Hat Enterprise Linux AppStream E4S (v.9.2) | Fixed | RHSA-2025:23451 |
| Red Hat Enterprise Linux AppStream EUS (v.9.4) | Fixed | RHSA-2025:23591 |
| Red Hat Enterprise Linux AppStream EUS (v.9.6) | Fixed | RHSA-2025:23110 |
| Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) | Fixed | RHSA-2025:23434 |
| Red Hat Enterprise Linux AppStream TUS (v.8.6) | Fixed | RHSA-2025:23743 |
| Red Hat Enterprise Linux AppStream TUS (v.8.8) | Fixed | RHSA-2025:23742 |
| Red Hat Enterprise Linux Server (v. 7 ELS) | Fixed | RHSA-2025:23583 |
| Red Hat Enterprise Linux Server Optional (v. 7 ELS) | Fixed | RHSA-2025:23583 |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-13502
- 2026-10-03 Alias added: GHSA-r6gx-fcg6-8hhj
References
More The WebKitGTK Team vulnerabilities
- TI-2025-40762 Webkitgtk: processing maliciously crafted web content may lead to an unexpected process crash CVSS 3.1HIGH 8.8
- TI-2025-12745 Webkit: webkitgtk: remote user-assisted information disclosure via file drag-and-drop CVSS 3.1HIGH 7.4
Sources
- CVE-2025-13502 · CVE Program
- CVE-2025-13502 · NVD
- FIRST EPSS
- GHSA-r6gx-fcg6-8hhj · GitHub Advisory Database · CC BY 4.0
- CVE-2025-13502 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences