CVE-2023-35945 @ morris
Status
new
Priority
7.0
Match score
4.0
Risk
DoS
Remote
CVSS
7.5 HIGH
Reason
cpe: nghttp2; pkgs: nghttp2; version: in-range: nghttp2-1.33.0-1.3.el7; risk:dos
Created
2026-10-15T10:20:09Z
Updated
2026-10-20T10:18:23Z
Package interrogation (copy)
Run on the host — click to copy a command. RPM
| Package | Commands |
|---|---|
| nghttp2-1.33.0-1.3.el7 | |
| alt-nghttp2-1.70.0-1.el7 | |
| ea-libnghttp2-1.70.0-1.el7.cloudlinux | |
| ea-libnghttp2-devel-1.70.0-1.el7.cloudlinux | |
| ea-nghttp2-1.70.0-1.el7.cloudlinux | |
| libnghttp2-1.33.0-1.3.el7 |
Inventory lookup
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Suggestions: nghttp2
Same product CVEs in your queue
Other open tickets that look like the same product. Closed tickets are omitted unless they are already pegged to this CVE.
| CVE | CVSS | KEV | Systems | Status | Matched | Already related | |
|---|---|---|---|---|---|---|---|
| CVE-2026-27135 | 7.5 | morris, mufasa | new | nghttp2 | — |
Related CVE (same fix)
Point this ticket’s CVE at a higher-priority / same-fix primary so you only triage one.
Host OS / kernel
OS
CloudLinux release 7.9 (Boris Yegorov)
(7.9)
· cloudlinux
Arch
x86_64
kernel_release
uname -r → 3.10.0-962.3.2.lve1.5.89.el7.x86_64kernel_version
uname -v → #1 SMP Thu Jul 9 15:55:31 UTC 2026For Linux kernel CVEs, kernel_version (Debian packaging / build string) often decides fixed vs not; kernel_release is used for upstream NVD range compares.
Same CVE on other hosts
Open the ticket for this CVE on another system.
| System | Status | Priority | Updated | |
|---|---|---|---|---|
| mufasa | new | 7.0 | 2026-10-20T10:18:23Z | Open |
| Silk | new | 4.0 | 2026-10-20T10:18:23Z | Open |
| Library | new | 1.75 | 2026-10-20T10:18:23Z | Open |
| Matrix | new | 1.75 | 2026-10-20T10:18:23Z | Open |
| Archive | new | 0.62 | 2026-10-20T10:18:23Z | Open |
| Bullseye | new | 0.62 | 2026-10-20T10:18:23Z | Open |
| Helios | new | 0.62 | 2026-10-20T10:18:23Z | Open |
Description
Envoy is a cloud-native high-performance edge/middle/service proxy. Envoy’s HTTP/2 codec may leak a header map and bookkeeping structures upon receiving `RST_STREAM` immediately followed by the `GOAWAY` frames from an upstream server. In nghttp2, cleanup of pending requests due to receipt of the `GOAWAY` frame skips de-allocation of the bookkeeping structure and pending compressed header. The error return [code path] is taken if connection is already marked for not sending more requests due to `GOAWAY` frame. The clean-up code is right after the return statement, causing memory leak. Denial of service through memory exhaustion. This vulnerability was patched in versions(s) 1.26.3, 1.25.8, 1.24.9, 1.23.11.
Update status
Add note only
References
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-jfxv-29pc-x22r
- https://github.com/nghttp2/nghttp2/blob/e7f59406556c80904b81b593d38508591bb7523a/lib/nghttp2_session.c#L3346
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-jfxv-29pc-x22r
- https://github.com/nghttp2/nghttp2/blob/e7f59406556c80904b81b593d38508591bb7523a/lib/nghttp2_session.c#L3346
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-943925.html
NVD: CVE-2023-35945