unbound: Unbound: Denial of Service due to degraded resolution performance in jostle logic

A flaw was found in Unbound. An adversary who can query a vulnerable Unbound instance and control a slow or malicious domain name server can exploit a vulnerability in the jostle logic. This flaw allows retransmitted queries to renew the age of slow-running queries, preventing them from being...

unbound: Unbound: Denial of Service due to excessive resource consumption with large DNS Resource Record Sets

A flaw was found in Unbound. A remote attacker can exploit this vulnerability by sending specially crafted DNS responses containing very large Resource Record Sets RRsets that require name compression. This can cause Unbound to spend a significant amount of time processing these responses, leadin...

unbound: Unbound: Denial of Service via excessive EDNS options

A flaw was found in Unbound. A remote attacker can exploit this vulnerability by sending queries with an excessive number of EDNS Extension Mechanisms for DNS options. This can cause Unbound threads to be held hostage while parsing and creating internal data structures for these options...

Oracle Linux 9 : unbound (ELSA-2026-36777)

The remote Oracle Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-36777 advisory. 1.24.2-3.2 - Fix CVE-2026-40622 RHEL-184840 Fix CVE-2026-44390 RHEL-186688 Fix CVE-2026-41292 RHEL-187352 Fix CVE-2026-42534 RHEL-187095 Tenable has...

unbound security update

1.16.2-5.12 - Fix CVE-2026-40622 RHEL-184832 - Fix CVE-2026-44390 RHEL-186680 - Fix CVE-2026-41292 RHEL-187346 - Fix CVE-2026-42534 RHEL-187081...

Important: unbound security update

The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: 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...

unbound security update

1.24.2-3.2 - Fix CVE-2026-40622 RHEL-184840 Fix CVE-2026-44390 RHEL-186688 Fix CVE-2026-41292 RHEL-187352 Fix CVE-2026-42534 RHEL-187095...

Important: Red Hat Security Advisory: unbound security update

An update for unbound is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from t...

unbound: Unbound: Denial of Service due to degraded resolution performance in jostle logic

A flaw was found in Unbound. An adversary who can query a vulnerable Unbound instance and control a slow or malicious domain name server can exploit a vulnerability in the jostle logic. This flaw allows retransmitted queries to renew the age of slow-running queries, preventing them from being...

unbound: Unbound: Denial of Service via excessive EDNS options

A flaw was found in Unbound. A remote attacker can exploit this vulnerability by sending queries with an excessive number of EDNS Extension Mechanisms for DNS options. This can cause Unbound threads to be held hostage while parsing and creating internal data structures for these options...

unbound: Unbound: Denial of Service due to excessive resource consumption with large DNS Resource Record Sets

A flaw was found in Unbound. A remote attacker can exploit this vulnerability by sending specially crafted DNS responses containing very large Resource Record Sets RRsets that require name compression. This can cause Unbound to spend a significant amount of time processing these responses, leadin...

unbound: Unbound: Cache manipulation via 'ghost domain names' attack

A flaw was found in NLnet Labs Unbound. A remote attacker, by controlling a malicious domain a "ghost zone" and querying a vulnerable Unbound server, could exploit a vulnerability related to "ghost domain names" attacks. This could allow the attacker to overwrite cached Name Server NS records,...

Important: unbound security update

The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: 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...

unbound: Unbound: Denial of Service due to excessive resource consumption with large DNS Resource Record Sets

A flaw was found in Unbound. A remote attacker can exploit this vulnerability by sending specially crafted DNS responses containing very large Resource Record Sets RRsets that require name compression. This can cause Unbound to spend a significant amount of time processing these responses, leadin...

Important: Red Hat Security Advisory: unbound security update

An update for unbound is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

unbound: Unbound: Denial of Service due to degraded resolution performance in jostle logic

A flaw was found in Unbound. An adversary who can query a vulnerable Unbound instance and control a slow or malicious domain name server can exploit a vulnerability in the jostle logic. This flaw allows retransmitted queries to renew the age of slow-running queries, preventing them from being...

unbound: Unbound: Cache manipulation via 'ghost domain names' attack

A flaw was found in NLnet Labs Unbound. A remote attacker, by controlling a malicious domain a "ghost zone" and querying a vulnerable Unbound server, could exploit a vulnerability related to "ghost domain names" attacks. This could allow the attacker to overwrite cached Name Server NS records,...

opentelemetry-instrumentation Denial of Service vulnerability due to unbound cardinality metrics

SummaryAutoinstrumentation out of the box adds the label httpmethod that has unbound cardinality. It leads to the server's potential memory exhaustion when many malicious requests are sent. DetailsHTTP method for requests can be easily set by an attacker to be random and long. PoCSend many reques...

MiracleLinux 9 : unbound-1.24.2-2.el9 (AXSA:2026-1052:06)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1052:06 advisory. unbound: DNSBomb vulnerability CVE-2024-33655 unbound: Unbound domain hijacking via promiscuous records CVE-2025-11411 Tenable has extracted the...

Security update for unbound (important)

openSUSE security update: security update for unbound ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:21083-1 Rating: important References: bsc1265578 bsc1265580 bsc1265581 bsc1265582 bsc1265583 bsc1265584 bsc1265585 bsc1265586 bsc1265587 bsc1265588...