CVE-2026-52690Disclosure

LOWCVSS 5.9 · MEDIUM

Signal is active with 2 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

Spoofing replies to Recursor might mark an IP of an authoritative server as not supporting EDNS, causing valdiation of DNSSEC records served by that server to fail.

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0.0/ 10 priority

Sources & remediation

Other references

https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-08.html

Weakness type (CWE)

CWE-290

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

2 mentions across 1 observed day

What's happening

Technical details provided in 2 signals
Disclosure: 2 classified signals
2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d

Signal classification1 categories

Disclosure

2100.0%

Referenced assets1 URL

By indicator

https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2026-08.html#cve-2026-52690-spoofed-answers-can-mark-an-authoritative-non-edns-capable

Full discourse2 posts

Yasuhiro Morishita@OrangeMorishita91d
Disclosure
【自分用メモ】High1件、Medium7件。 PowerDNS Security Advisory 2026-08 for PowerDNS Recursor: Multiple Issues - PowerDNS Recursor documentation https://doc.powerdns.com/recursor/security-advisories/powerdns-advisory-2026-08.html#cve-2026-52690-spoofed-answers-can-mark-an-authoritative-non-edns-capable
Post summary
The note references a 2026‑08 PowerDNS Recursor advisory listing several CVEs, including a high‑severity issue involving spoofed DNS answers, but it contains no PoC, exploit code, or evidence of active exploitation.
16051821
4.5K followersView on X
Yasuhiro Morishita@OrangeMorishita91d
Disclosure
CVE-2026-52690：偽の応答で、権威DNSサーバーがEDNS0をサポートしていないとだますことができ、DNSSEC検証エラーにできる。深刻度Medium。
Post summary
The tweet announces CVE‑2026‑52690, describing how a forged DNS response can exploit an EDNS0‑unsupported authoritative server to trigger DNSSEC validation errors, without providing PoC, exploit code, or patch information.
002524.7K
4.5K followersView on X

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