CLSA-2026-1779437608

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Import Source
https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1779437608.json
JSON Data
https://api.osv.dev/v1/vulns/CLSA-2026-1779437608
Upstream
  • CVE-2026-2291
  • CVE-2026-4890
  • CVE-2026-4891
  • CVE-2026-4892
  • CVE-2026-4893
Published
2026-05-22T08:13:33Z
Modified
2026-06-01T00:33:15.186949815Z
Summary
dnsmasq: Fix of 5 CVEs
Details
  • CVE-2026-2291: fix buffer overflow in union bigname
  • CVE-2026-4890: fix NSEC bitmap parsing infinite loop and OOB reads
  • CVE-2026-4891: verify rdlen field in RRSIG packets
  • CVE-2026-4892: fix buffer overflow in helper.c with large CLIDs
  • CVE-2026-4893: fix broken client subnet validation
References

Affected packages

TuxCare:CentOS-Stream:8 / dnsmasq

Package

Name
dnsmasq
Purl
pkg:rpm/tuxcare/dnsmasq?distro=centos-stream-8

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.79-33.el8.tuxcare.els1

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1779437608.json"

TuxCare:CentOS-Stream:8 / dnsmasq-utils

Package

Name
dnsmasq-utils
Purl
pkg:rpm/tuxcare/dnsmasq-utils?distro=centos-stream-8

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.79-33.el8.tuxcare.els1

Database specific

source 
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1779437608.json"