Unbound Security Update — AlmaLinux 8 (ALSA-2026:37282)
This is a security release for AlmaLinux 8. The fix ships in the current release line (referenced builds: 16.2-5). Update the product on every affected server to the patched release — there is no workaround, and unpatched servers remain exposed until updated.
Fix-Befehle
EL8+ (AlmaLinux/CloudLinux/Rocky)
sudo dnf updateWas das unter einer SharedLicense-Lizenz bedeutet
Your SharedLicense license itself is not affected — this is a change in AlmaLinux 8 software, not in licensing. Update the product through its standard update channel. Licenses keep working through updates; nothing needs re-issuing or re-activating.
The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver.
Security Fix(es):
* unbound: Unbound: Denial of Service via excessive EDNS options (CVE-2026-41292)
* unbound: Unbound: Cache manipulation via ‘ghost domain names’ attack (CVE-2026-40622)
* unbound: Unbound: Denial…
The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver.
Security Fix(es):
* unbound: Unbound: Denial of Service via excessive EDNS options (CVE-2026-41292)
* unbound: Unbound: Cache manipulation via ‘ghost domain names’ attack (CVE-2026-40622)
* unbound: Unbound: Denial…
The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver.
Security Fix(es):
* unbound: Unbound: Denial of Service via excessive EDNS options (CVE-2026-41292)
* unbound: Unbound: Cache manipulation via ‘ghost domain names’ attack (CVE-2026-40622)
* unbound: Unbound: Denial…
The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver.
Security Fix(es):
* unbound: Unbound: Denial of Service via excessive EDNS options (CVE-2026-41292)
* unbound: Unbound: Cache manipulation via ‘ghost domain names’ attack (CVE-2026-40622)
* unbound: Unbound: Denial…
Type:
security
Severity:
important
Release date:
2026-07-31
Description:
The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver.
Security Fix(es):
* unbound: Unbound: Denial of Service via excessive EDNS options (CVE-2026-41292)
* unbound: Unbound: Cache manipulation via ‘ghost domain names’ attack (CVE-2026-40622)
* unbound: Unbound: Denial of Service due to excessive resource consumption with large DNS Resource Record Sets (CVE-2026-44390)
* unbound: Unbound: Denial of Service due to degraded resolution performance in jostle logic (CVE-2026-42534)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
References:
Updated packages listed below:
| Architecture | Package | Checksum |
| aarch64 | unbound-devel-1.16.2-5.12.el8_10.aarch64.rpm | 2605c741d5373e5b2620a4035f98a2da1de7b9f554e011108337d2862e101c2c |
| aarch64 | unbound-libs-1.16.2-5.12.el8_10.aarch64.rpm | 6c5432fe0ed5a818e315071669bfaf8695058e3e5c19b9a8d4c028687f96fa0e |
| aarch64 | unbound-1.16.2-5.12.el8_10.aarch64.rpm | 7bc48a7deb632c4a4b7af46d3d900e8d649ab3025637efc7dfa3a04fe34d799f |
| aarch64 | python3-unbound-1.16.2-5.12.el8_10.aarch64.rpm | a865f25444f86774b78b5ac308b88c393530db829cf7865ca2c4d47994635862 |
| i686 | unbound-libs-1.16.2-5.12.el8_10.i686.rpm | bf0a7e85011cb97fa31c91e4243e4e2b3a2ebda00a3e6bcc623adfabd9746a27 |
| i686 | unbound-devel-1.16.2-5.12.el8_10.i686.rpm | d78a6b6638fec75478fb04375009ce9457e099a7827b235e72469be677fc8d12 |
| ppc64le | unbound-devel-1.16.2-5.12.el8_10.ppc64le.rpm | 0c5ad56df3dc2f3766ce62940caabd120ba3a412eb933c814e7aba9abcea7963 |
| ppc64le | unbound-1.16.2-5.12.el8_10.ppc64le.rpm | 34811831d163b738a57f81ad574562874eca4d561f4fdfb2cd4c056041c6071c |
| ppc64le | unbound-libs-1.16.2-5.12.el8_10.ppc64le.rpm | 806dc44111a7a26018621960a03304b4f5eb4ba4da8f3132dafbf4a45ed41bbf |
| ppc64le | python3-unbound-1.16.2-5.12.el8_10.ppc64le.rpm | 80d9569b7cf8758af3ccea23a5852ce4914d5778ba531c069e58164cc5d30da1 |
| s390x | unbound-devel-1.16.2-5.12.el8_10.s390x.rpm | 39cd7028237276f1c9fe35ff94e26ffa632f88568649280d129c302fc877aa90 |
| s390x | python3-unbound-1.16.2-5.12.el8_10.s390x.rpm | 9bd47b717cc12684bf93046c184cccb92d5ba0310f9b32c7c9c118b38adeed7f |
| s390x | unbound-libs-1.16.2-5.12.el8_10.s390x.rpm | affc58cef768b6d0e5a381ca8af7d08e7573b2cc61914706c1933c592a98641b |
| s390x | unbound-1.16.2-5.12.el8_10.s390x.rpm | cf36f0a88a35fcc6cda976773564f283a23c721930490ee9715060ecc0f3cd5d |
| x86_64 | python3-unbound-1.16.2-5.12.el8_10.x86_64.rpm | 46bf5703a19b0116303198beb1ad2d79f41cf7619cdc328ce8aacb55fb2a4b6a |
| x86_64 | unbound-libs-1.16.2-5.12.el8_10.x86_64.rpm | 649d58b39289a966faa5036331cd862f3dd6a9b02cf4e9b264e5e9b07c674156 |
| x86_64 | unbound-1.16.2-5.12.el8_10.x86_64.rpm | df2864c14264836babda10cb6d61304c5fbbfc35587e167360276fa91537ecb5 |
| x86_64 | unbound-devel-1.16.2-5.12.el8_10.x86_64.rpm | eea252b01843791b20e9bc57d260329dbc30fbb9a3c2e3ca4860ba20d7b478c5 |
Notes:
This page is generated automatically from Red Hat security data and has not been checked for errors. For clarification or corrections please contact the AlmaLinux Packaging Team.
Referenzen
Sicherheitshinweise
Verwandte Warnhinweise
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