CVE-2026-46582

A flaw was found in Unbound, a Domain Name System DNS resolver. A remote attacker can exploit a vulnerability in how Unbound handles expired DNSSEC DNS Security Extensions records. By injecting a replayed wildcard record set, an attacker can cause Unbound to temporarily consider it secure, leadin...

Security update for bind

This update for bind fixes the following issues: Upgrade to release 9.20.26. Security issues fixed: CVE-2026-10723: incorrect acceptance of NSEC3 records bsc1271982. CVE-2026-10822: key record using PRIVATEDNS algorithm may lead to unexpected exit bsc1271983. CVE-2026-11331: potential wildcard...

SUSE-SU-2026:3426-1 Security update for bind

This update for bind fixes the following issues: Upgrade to release 9.20.26. Security issues fixed: - CVE-2026-10723: incorrect acceptance of NSEC3 records bsc1271982. - CVE-2026-10822: key record using PRIVATEDNS algorithm may lead to unexpected exit bsc1271983. - CVE-2026-11331: potential...

CVE-2026-52686

A flaw was found in pdns-recursor. This vulnerability allows a remote attacker to bypass DNSSEC Domain Name System Security Extensions validation. The flaw occurs because the system accepts wildcard expansion proofs NSEC/NSEC3 records without proper signature validation when the wildcard answer i...

Unnecessary validation of DNSSEC signed records

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Unexpected exit in certain situations with NSEC and NSEC3 both present

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Linux Distros Unpatched Vulnerability : CVE-2026-44687

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In NLnet Labs Unbound 1.13.2 up to and including 1.25.1, stub or forward zones where the name is below an intermediate labed below a DNSSEC signed zone could be...

SUSE CVE-2026-52686

The issue is a DNSSEC validation bypass where wildcard expansion proofs NSEC/NSEC3 records are accepted without signature validation when the wildcard answer is a CNAME or DNAME record...

CVE-2026-56416

A vulnerability in Unbound allows remote attackers using malicious DNSSEC-signed servers to send malformed records that trigger a heap buffer overflow. This can cause a denial of service or potential limited information disclosure. Mitigation To mitigate this issue, consider disabling DNSSEC...

'response-ip'/'rpz' can rewrite BOGUS answers instead of returning SERVFAIL

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CVE-2026-52688

Technical details for CVE-2026-52688 are not publicly available in the provided documents; monitor for updates.

CVE-2026-52686

The issue is a DNSSEC validation bypass where wildcard expansion proofs NSEC/NSEC3 records are accepted without signature validation when the wildcard answer is a CNAME or DNAME record...

CVE-2026-52686 Wildcard CNAME proof validation bypass

The issue is a DNSSEC validation bypass where wildcard expansion proofs NSEC/NSEC3 records are accepted without signature validation when the wildcard answer is a CNAME or DNAME record...

[SECURITY] [DSA 6397-1] pdns-recursor security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6397-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso July 23, 2026 https://www.debian.org/security/faq -...

PT-2026-63587

The issue is a DNSSEC validation bypass where wildcard expansion proofs NSEC/NSEC3 records are accepted without signature validation when the wildcard answer is a CNAME or DNAME record...

CVE-2026-11605

The issue is a resource exhaustion vulnerability associated with DNSSEC validation. BIND always validates all RRSIG records in an answer, even if they are not strictly needed. A query to an authoritative server/zone which returns many valid but superfluous RRSIG records causes the validator to...

AZL-92931 CVE-2026-44690 affecting package unbound for versions less than 1.25.2-1

In NLnet Labs Unbound 1.7.0 up to and including 1.25.1, insufficient validation of the RRSIG.Labels field combined with premature cache writes during RFC 8198 aggressive NSEC processing leads to cache poisoning that permits a malicious actor controlling a single delegated zone to poison arbitrary...

ALPINE-CVE-2026-44687

In NLnet Labs Unbound 1.13.2 up to and including 1.25.1, stub or forward zones where the name is below an intermediate labed below a DNSSEC signed zone could be shadowed by the intermediate label's secure NXDOMAIN answer from the parent. This is caused by an off-by-one error in...

ALPINE-CVE-2026-50045

In NLnet Labs Unbound 1.22.0 up to and including 1.25.1, a single client query for a deeply nested name under a DNSSEC-signed parent can cause Unbound to send more upstream packets per client query than the configured 'max-global-quota'. This effectively bypasses a security configuration that...

ALPINE-CVE-2026-46582

In NLnet Labs Unbound 1.6.0 up to and including 1.25.1, a replay of a wildcard rrset as another piece of data, could be briefly considered DNSSEC secure based only on the RRSIG validation and stored into cache, before later validation treats it as bogus based on NSEC validation. When the resolvin...