CLSA-2026-1779534149

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Import Source
https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1779534149.json
JSON Data
https://api.osv.dev/v1/vulns/CLSA-2026-1779534149
Upstream
  • CVE-2026-33278
Published
2026-05-23T11:02:33Z
Modified
2026-06-01T00:33:14.946853790Z
Summary
unbound: Fix of CVE-2026-33278
Details
  • CVE-2026-33278: use-after-free in DNSSEC validator dnsmsgdeepcopy_region during NSEC3 sub-query suspend/resume; buggy struct-assignment overwrote the destination's freshly-allocated rrsets pointer with the source's pointer, leaving a dangling pointer dereferenced after the source region was freed (possible remote code execution or crash)
References

Affected packages

TuxCare:CentOS-Stream:8 / python3-unbound

Package

Name
python3-unbound
Purl
pkg:rpm/tuxcare/python3-unbound?distro=centos-stream-8

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.16.2-5.el8.tuxcare.els5

Database specific

source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1779534149.json"

TuxCare:CentOS-Stream:8 / unbound

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.16.2-5.el8.tuxcare.els5

Database specific

source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1779534149.json"

TuxCare:CentOS-Stream:8 / unbound-devel

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.16.2-5.el8.tuxcare.els5

Database specific

source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1779534149.json"

TuxCare:CentOS-Stream:8 / unbound-libs

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.16.2-5.el8.tuxcare.els5

Database specific

source
"https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos-stream8els/CLSA-2026-1779534149.json"