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Fencer Vulns
medium 5.3

CVE-2024-34161 json

NGINX HTTP/3 QUIC vulnerability

published 2024-05-29 2 y ago modified 2026-09-08 2 mo ago also BIT-nginx-2024-34161 , BIT-nginx-gateway-2024-34161 , EUVD-2024-34667

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 58%
public exploits
0
none known

Summary

When NGINX Plus or NGINX OSS are configured to use the HTTP/3 QUIC module and the network infrastructure supports a Maximum Transmission Unit (MTU) of 4096 or greater without fragmentation, undisclosed QUIC packets can cause NGINX worker processes to leak previously freed memory.

Patch / fix

  • bitnami nginx 1.26.1
  • bitnami nginx-gateway 1.26.1
  • F5 NGINX Open Source 1.26.1
  • F5 NGINX Plus R32
  • nginx Debian 14, Debian 13 1.26.0-2

debian advisories DEBIAN-CVE-2024-34161

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-34161 updated cvss 5.3

nginx: undisclosed QUIC packets can cause NGINX worker processes to leak previously freed memory

  • Red Hat Ansible Automation Platform 1.2 nginx Red Hat Enterprise Linux 8 nginx, nginx-mod-mail, nginx-filesystem, nginx-mod-stream, nginx-all-modules, nginx-mod-http-perl, +2 more Red Hat Enterprise Linux 9 nginx, nginx-core, nginx-mod-mail, nginx-filesystem, nginx-mod-stream, nginx-all-modules, +3 more Red Hat Enterprise Linux 10 nginx Red Hat Software Collections rh-nginx118-nginx, rh-nginx120-nginx, rh-nginx118-nginx-mod-mail, rh-nginx120-nginx-mod-mail, rh-nginx118-nginx-mod-stream, rh-nginx120-nginx-mod-stream, +6 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
2 y ago

Exploit prediction

0.87% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
OSV 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
bitnami nginx
>=1.25.0, <1.26.1
1.26.1
bitnami nginx-gateway
>=1.25.0, <1.26.1
1.26.1

Affected products

  • F5 NGINX Open Source
  • F5 NGINX Plus
  • f5 nginx_plus
  • f5 nginx

Classification

Weakness
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.