The idle stream handling in nghttp2 before 1.6.0 allows attackers to have unspecified…
Priority MEDIUM 50CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
The idle stream handling in nghttp2 before 1.6.0 allows attackers to have unspecified impact via unknown vectors, aka a heap-use-after-free bug.
Why it matters now
EPSS 0.03964 90th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* | up to 10.11.3 | Vulnerable | Apple |
| cpe:2.3:a:nghttp2:nghttp2:*:*:*:*:*:*:*:* | up to 1.5.0 | Vulnerable | nghttp2 |
| cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | up to 9.2.1 | Vulnerable | Apple |
| cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* | up to 9.1 | Vulnerable | Apple |
| cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* | up to 2.1 | Vulnerable | Apple |
- cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:* Versions up to 10.11.3 Vulnerable ·Apple
- cpe:2.3:a:nghttp2:nghttp2:*:*:*:*:*:*:*:* Versions up to 1.5.0 Vulnerable ·nghttp2
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions up to 9.2.1 Vulnerable ·Apple
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions up to 9.1 Vulnerable ·Apple
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions up to 2.1 Vulnerable ·Apple
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2015-8659
- 2026-10-03 Alias added: GHSA-v339-2hrg-v7hm
References
Advisory 11
Sources
- CVE-2015-8659 · CVE Program
- CVE-2015-8659 · NVD
- FIRST EPSS
- GHSA-v339-2hrg-v7hm · GitHub Advisory Database · CC BY 4.0
- CVE-2015-8659 · 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