CVE-2026-27135 @ morris

"CVE-2026-27135"
"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"
"Am I vulnerable?"

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

2026-10-15T10:19:48Z

Updated

2026-10-20T10:18:12Z

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

Search package inventory across systems, then return here. Create a ticket on systems the matcher missed.

Suggestions: nghttp2

System	Matches	Ticket for CVE-2026-27135
morris	alt-nghttp2 1.70.0; ea-libnghttp2 1.70.0; ea-libnghttp2-devel 1.70.0; ea-nghttp2 1.70.0; libnghttp2 1.33.0	new open
mufasa	alt-nghttp2 1.70.0; ea-libnghttp2 1.70.0; ea-nghttp2 1.70.0; libnghttp2 1.33.0	new open
Archive	libnghttp2-14 1.36.0-2+deb10u3	none
Bullseye	libnghttp2-14 1.43.0-1+deb11u3	none
Helios	libnghttp2-14 1.43.0-1+deb11u3	none
Janus	libnghttp2-14 1.36.0-2+deb10u3	none
Library	libnghttp2-14 1.18.1-1+deb9u2	none
Matrix	libnghttp2-14 1.52.0-1+deb12u3	none
Saiph	libnghttp2-14 1.36.0-2+deb10u3	none
Silk	libnghttp2-14 1.52.0-1+deb12u3	none

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-2023-35945	7.5		Archive, Bullseye, Helios, Library, Matrix …	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

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_64

kernel_version

uname -v → #1 SMP Thu Jul 9 15:55:31 UTC 2026

For 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	2026-10-20T10:18:12Z	Open

Description

nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. Prior to version 1.68.1, the nghttp2 library stops reading the incoming data when user facing public API `nghttp2_session_terminate_session` or `nghttp2_session_terminate_session2` is called by the application. They might be called internally by the library when it detects the situation that is subject to connection error. Due to the missing internal state validation, the library keeps reading the rest of the data after one of those APIs is called. Then receiving a malformed frame that causes FRAME_SIZE_ERROR causes assertion failure. nghttp2 v1.68.1 adds missing state validation to avoid assertion failure. No known workarounds are available.

Update status

Add note only

References

NVD: CVE-2026-27135