CLSA-2026-1786637650
See a problem?- Import Source
- https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1786637650.json
- JSON Data
- https://api.osv.dev/v1/vulns/CLSA-2026-1786637650
- Upstream
- Published
- 2026-08-21T13:02:14Z
- Modified
- 2026-10-26T09:43:28Z
- Summary
- unbound: Fix of 14 CVEs
- Details
-
- CVE-2024-33655: add the upstream wait-limit and discard-timeout mechanism so accumulated recursion replies can no longer be released as a pulsing burst (DNSBomb), including every upstream follow-up to that mechanism: discard only UDP replies and never a reply on an open stream connection, clear the HTTP/2 stream back-pointer on the drop paths, account discarded replies in mesh num_reply_addrs, and fix CVE-2026-56444 in the serve-expired discard path
- CVE-2024-43167: NULL-check the first forward stub name in ub_ctx_set_fwd() to prevent a NULL pointer dereference in libunbound, and reject a forward-zone, stub-zone or view without a name at config parse time so no name-less object reaches the daemon
- CVE-2026-42955: clamp the cached TTL of parent-side A/AAAA glue as well as NS records so a client query can no longer renew a ghost domain delegation
- CVE-2026-46582: keep a secure wildcard RRset out of the rrset cache until the NSEC wildcard proof completes, preventing poisoning via the serve-expired reply path
- CVE-2026-50243: skip the response-ip/RPZ rewrite for BOGUS answers so a spoofed DNSSEC-protected answer is no longer redirected as INSECURE
- CVE-2026-55708: enter the default-protected local zones when unbound-control view_local_data creates a view-specific local zone tree
- References
-
- https://errata.tuxcare.com/els_os/almalinux9.2esu/CLSA-2026-1786637650.html
- https://nvd.nist.gov/vuln/detail/CVE-2024-33655
- https://nvd.nist.gov/vuln/detail/CVE-2024-43167
- https://nvd.nist.gov/vuln/detail/CVE-2026-42955
- https://nvd.nist.gov/vuln/detail/CVE-2026-44621
- https://nvd.nist.gov/vuln/detail/CVE-2026-44687
- https://nvd.nist.gov/vuln/detail/CVE-2026-44690
- https://nvd.nist.gov/vuln/detail/CVE-2026-46582
- https://nvd.nist.gov/vuln/detail/CVE-2026-50046
- https://nvd.nist.gov/vuln/detail/CVE-2026-50243
- https://nvd.nist.gov/vuln/detail/CVE-2026-50248
- https://nvd.nist.gov/vuln/detail/CVE-2026-50251
- https://nvd.nist.gov/vuln/detail/CVE-2026-55708
- https://nvd.nist.gov/vuln/detail/CVE-2026-55717
- https://nvd.nist.gov/vuln/detail/CVE-2026-56416
Affected packages
TuxCare:AlmaLinux:9.2 / python3-unbound
Package
- Name
- python3-unbound
- Purl
- pkg:rpm/tuxcare/python3-unbound?distro=almalinux-9.2
TuxCare:AlmaLinux:9.2 / unbound
Package
- Name
- unbound
- Purl
- pkg:rpm/tuxcare/unbound?distro=almalinux-9.2
TuxCare:AlmaLinux:9.2 / unbound-devel
Package
- Name
- unbound-devel
- Purl
- pkg:rpm/tuxcare/unbound-devel?distro=almalinux-9.2