CVE-2026-33594Disclosure(powerdns / dnsdist)

LOWCVSS 7.5 · HIGH

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

A client can trigger excessive memory allocation by generating a lot of queries that are routed to an overloaded DoH backend, causing queries to accumulate into a buffer that will not be released until the end of the connection.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-770

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • dnsdist

Threat summary

  • 2 mentions across 1 observed day

What's happening

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

Affected systems

Vendors
Products
dnsdist

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-04-22: 2Technical Details · 2026-04-22: 204-22
Signal classification2 categories
Disclosure
150.0%
General
150.0%
Referenced assets2 URLs
Full discourse2 posts
  • CVE@CVEnew
    Disclosure

    CVE-2026-33594 A client can trigger excessive memory allocation by generating a lot of queries that are routed to an overloaded DoH backend, causing queries to accumulate into a buf… https://www.cve.org/CVERecord?id=CVE-2026-33594

    Post summary

    The text announces CVE-2026-33594, detailing a memory allocation problem in a DoH backend, but provides no PoC, exploit code, patch, or evidence of active exploitation.

    00000135
    57.2K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    General

    CVE-2026-33594 Denial of Service via Excessive Memory Allocation in DoH Backend Query Buffering https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-33594

    Post summary

    The post lists CVE‑2026‑33594 with a brief technical description of a DoS flaw involving excessive memory allocation in DoH backend query buffering, linking to a vulnerability page, but provides no further details, patches, or exploitation evidence.

    0000053
    4.0K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Apppowerdnsdnsdist---

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