CVE-2026-52688General

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-295CWE-345

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 1 signal
  • General: 1 classified signal
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-07-27); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-07-27: 1Mentions · 2026-07-28: 1Technical Details · 2026-07-28: 107-2707-28
Signal classification2 categories
General
150.0%
Disclosure
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-07-271
General1
2026-07-281
Disclosure1
Full discourse2 posts
  • 日本レジストリサービス(JPRS)@JPRS_official
    General

    【注意喚起】PowerDNS Recursorの脆弱性情報が公開されました(CVE-2026-52688、CVE-2026-52686) https://jprs.jp/tech/security/2026-07-27-powerdns-recursor.html

    Post summary

    A notice confirms that information on PowerDNS Recursor vulnerabilities (CVE‑2026‑52688, CVE‑2026‑52686) has been published, but no details on exploitation, patches, or PoCs are provided.

    03070514
    1.3K followersView on X
  • Open Source Security mailing list@oss_security
    Disclosure

    PowerDNS Security Advisory 2026-10 for PowerDNS Recursor https://www.openwall.com/lists/oss-security/2026/07/22/6 CVE-2026-52688: RRSIGs with too few labels can lead to bypass of DNSSEC wildcard validation CVE-2026-62686: Wildcard CNAME proof validation bypass

    Post summary

    PowerDNS releases a security advisory with detailed technical information on two CVEs that allow bypassing DNSSEC wildcard validation via RRSIG label counts and wildcard CNAME proof validation.

    00020391
    4.7K followersView on X

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