dnsmasq: NSEC bitmap parsing infinite loop

A denial of service vulnerability was discovered in dnsmasq's DNSSEC validation. When parsing NSEC and NSEC3 bitmap records, the window iteration logic fails to account for the 2-byte window header when advancing through the bitmap data. A specially crafted DNS response with a zero-length bitmap...

CLSA-2026-1779214855 bind: Fix of CVE-2026-1519

CVE-2026-1519: fix unbounded NSEC3 iterations when validating referrals to unsigned delegations...

hickory-proto: NSEC3 closest-encloser proof validation enters unbounded loop on cross-zone responses

The NSEC3 closest-encloser proof validation in hickory-proto's 0.25.0-alpha.3 ... 0.25.2 and hickory-net's 0.26.0-alpha.1 .. 0.26.0 DnssecDnsHandle walks from the QNAME up to the SOA owner name, building a list of candidate encloser names. The iterator used assumes the QNAME is a descendant of th...

PT-2026-38485

The NSEC3 closest-encloser proof validation in hickory-proto's 0.25.0-alpha.3 ... 0.25.2 and hickory-net's 0.26.0-alpha.1 .. 0.26.0 DnssecDnsHandle walks from the QNAME up to the SOA owner name, building a list of candidate encloser names. The iterator used assumes the QNAME is a descendant of th...

RUSTSEC-2026-0118 NSEC3 closest-encloser proof validation enters unbounded loop on cross-zone responses

The NSEC3 closest-encloser proof validation in hickory-proto's DnssecDnsHandle walks from the QNAME up to the SOA owner name, building a list of candidate encloser names. The iterator used assumes the QNAME is a descendant of the SOA owner, terminating only when the current candidate equals the S...

CLSA-2026-1777541752 bind: Fix of CVE-2026-1519

CVE-2026-1519: limit NSEC3 iteration count when proving an insecure delegation so a maliciously crafted DNSSEC zone with a high-iteration NSEC3 record cannot exhaust resolver CPU; treat the answer as insecure above the 150-iteration limit. Backport of bind-9.11.36-16.el810.7 RHSA-2026:8352...

CLSA-2026-1777453021 bind: Fix of CVE-2026-1519

CVE-2026-1519: limit NSEC3 iteration count when proving an insecure delegation so a maliciously crafted DNSSEC zone with a high-iteration NSEC3 record cannot exhaust resolver CPU; treat the answer as insecure above the 150-iteration limit. Backport of bind-9.11.36-16.el810.7 RHSA-2026:8352...

CLSA-2026-1777452704 bind: Fix of CVE-2026-1519

CVE-2026-1519: limit NSEC3 iteration count when proving an insecure delegation so a maliciously crafted DNSSEC zone with a high-iteration NSEC3 record cannot exhaust resolver CPU; treat the answer as insecure above the 150-iteration limit. Backport of bind-9.11.36-16.el810.7 RHSA-2026:8352...

SUSE CVE-2026-33261

A zone transition from NSEC to NSEC3 might trigger an internal inconsistency and cause a denial of service...

Linux Distros Unpatched Vulnerability : CVE-2026-33261

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A zone transition from NSEC to NSEC3 might trigger an internal inconsistency and cause a denial of service. CVE-2026-33261 Note that Nessus relies on the presen...

DEBIAN-CVE-2026-33261

A zone transition from NSEC to NSEC3 might trigger an internal inconsistency and cause a denial of service...

CVE-2026-33261

A zone transition from NSEC to NSEC3 might trigger an internal inconsistency and cause a denial of service...

CVE-2026-33261 Null pointer accces in aggressive NSEC(3) cache

A zone transition from NSEC to NSEC3 might trigger an internal inconsistency and cause a denial of service...

CVE-2026-33258

By publishing and querying a crafted zone an attacker can cause allocation of large entries in the negative and aggressive NSEC3 caches...

PowerDNS Recursor 安全漏洞

PowerDNS Recursor pdnsrecursor is a domain name resolution server developed by the Dutch company PowerDNS. There is a security vulnerability in PowerDNS Recursor, which can trigger internal inconsistencies due to the region conversion from NSEC to NSEC3, resulting in a denial-of-service attack...

SUSE SLES15 Security Update : bind (SUSE-SU-2026:1428-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:1428-1 advisory. - CVE-2026-1519: high CPU load during insecure delegation validation due to excessive NSEC3 iterations bsc1260805. Tenable has extracted the...

Security update for bind

This update for bind fixes the following issues: CVE-2026-1519: high CPU load during insecure delegation validation due to excessive NSEC3 iterations bsc1260805. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or "zypper patch"...

Security update for bind

This update for bind fixes the following issues: CVE-2026-1519: high CPU load during insecure delegation validation due to excessive NSEC3 iterations bsc1260805. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or "zypper patch"...

SUSE-SU-2026:1366-1 Security update for bind

This update for bind fixes the following issues: - CVE-2026-1519: high CPU load during insecure delegation validation due to excessive NSEC3 iterations bsc1260805...

SUSE SLES15 / openSUSE 15 Security Update : bind (SUSE-SU-2026:1312-1)

The remote SUSE Linux SLES15 / SLESSAP15 / openSUSE 15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:1312-1 advisory. - CVE-2026-1519: high CPU load during insecure delegation validation due to excessive NSEC3 iterations bsc1260805. Tenable has...