An out-of-bounds write caused by numeric truncation Samsung Open Source Escargot on Linux…
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Deferred Red Hat: fix deferred
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.
Summary
An out-of-bounds write caused by numeric truncation Samsung Open Source Escargot on Linux x86-64 allows an attacker who can supply JavaScript for execution to corrupt native memory and crash the host process via a crafted class definition whose instance initialization entry count exceeds UINT16_MAX. This issue affects Escargot: 5dc93606abd42b859045add05d704a038e197359.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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 |
|---|---|---|---|---|---|
| Samsung Opensource | Escargot | 5dc93606abd42b859045add05d704a038e197359 | — | No fix listed | CNA |
- Escargot VendorSamsung Opensource Affected 5dc93606abd42b859045add05d704a038e197359 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| OpenShift Lightspeed | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux AI (RHEL AI) 3 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet: Fix deferred |
| Red Hat OpenShift Update Service | Affected | No fix yet: Fix deferred |
Not affected: 1 product
- Red Hat Hardened Images
Timeline
- 2026-10-02 Threatist record created from CVE-2026-86315
- 2026-10-03 Alias added: GHSA-xh23-cpx8-xqgm
References
More Samsung Opensource vulnerabilities
- TI-2026-59096 Out-of-bounds write in Samsung Opensource Walrus CVSS 3.1HIGH 7.8
- TI-2026-59097 Integer overflow in Samsung Opensource Walrus CVSS 3.1MEDIUM 6.2
- TI-2026-70802 Heap-based buffer overflow in Samsung Opensource rlottie CVSS 3.1MEDIUM 5.5
- TI-2026-62285 Integer overflow in Samsung Opensource Escargot CVSS 3.1MEDIUM 5.5
- TI-2026-62028 Stack-based buffer overflow in Samsung Opensource rLottie CVSS 3.1MEDIUM 4.4
- TI-2026-36654 Out-of-bounds read in Samsung Opensource rLottie CVSS 3.1MEDIUM 4.4
Sources
- CVE-2026-86315 · CVE Program
- CVE-2026-86315 · NVD
- FIRST EPSS
- GHSA-xh23-cpx8-xqgm · GitHub Advisory Database · CC BY 4.0
- CVE-2026-86315 · 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