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114 vulnerabilities by powerdns
CVE-2026-41999 (GCVE-0-2026-41999)
Vulnerability from cvelistv5 – Published: 2026-05-21 09:27 – Updated: 2026-05-21 11:58
VLAI
Title
Incorrect Behaviour of Views with TCP PROXY Requests
Summary
Incorrect Behaviour of Views with TCP PROXY Requests
Severity
4.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Improper Access Control
- CWE-284 - Improper Access Control
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PowerDNS | Authoritative |
Affected:
5.0.0 , < 5.0.5
(semver)
|
Date Public
2026-05-19 22:00
Credits
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CVE-2026-42002 (GCVE-0-2026-42002)
Vulnerability from cvelistv5 – Published: 2026-05-21 09:27 – Updated: 2026-05-21 11:59
VLAI
Title
Concurrency and locking defects in GSS-TSIG
Summary
Concurrency and locking defects in GSS-TSIG
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Signal Handler Race Condition
- CWE-364 - Signal Handler Race Condition
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PowerDNS | Authoritative |
Affected:
4.9.0 , < 4.9.15
(semver)
Affected: 5.0.0 , < 5.0.5 (semver) |
Date Public
2026-05-19 22:00
Credits
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CVE-2026-42001 (GCVE-0-2026-42001)
Vulnerability from cvelistv5 – Published: 2026-05-21 09:26 – Updated: 2026-05-21 12:01
VLAI
Title
Insufficient Validation of Autoprimary SOA Queries
Summary
Insufficient Validation of Autoprimary SOA Queries
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Uncontrolled Resource Consumption
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PowerDNS | Authoritative |
Affected:
4.9.0 , < 4.9.15
(semver)
Affected: 5.0.0 , < 5.0.5 (semver) |
Date Public
2026-05-19 22:00
Credits
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CVE-2026-42000 (GCVE-0-2026-42000)
Vulnerability from cvelistv5 – Published: 2026-05-21 09:25 – Updated: 2026-05-21 12:02
VLAI
Title
Insufficient Validation of Names During AXFR
Summary
Insufficient Validation of Names During AXFR
Severity
6.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Improper Neutralization of Special Elements used in a Command ('Command Injection')
- CWE-77 - Improper Neutralization of Special Elements used in a Command ('Command Injection')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PowerDNS | Authoritative |
Affected:
4.9.0 , < 4.9.15
(semver)
Affected: 5.0.0 , < 5.0.5 (semver) |
Date Public
2026-05-19 22:00
Credits
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CVE-2026-42396 (GCVE-0-2026-42396)
Vulnerability from cvelistv5 – Published: 2026-05-21 09:25 – Updated: 2026-05-21 12:03
VLAI
Title
Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail
Summary
Insufficient Validation of Member Zone Data May Cause Catalog Zone Transfer to Fail
Severity
4.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Improper Control of Generation of Code ('Code Injection')
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PowerDNS | Authoritative |
Affected:
4.9.0 , < 4.9.15
(semver)
Affected: 5.0.0 , < 5.0.5 (semver) |
Date Public
2026-05-19 22:00
Credits
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CVE-2026-33611 (GCVE-0-2026-33611)
Vulnerability from cvelistv5 – Published: 2026-04-22 14:01 – Updated: 2026-04-22 14:24
VLAI
Title
Insufficient validation of HTTPS and SVCB records
Summary
An operator allowed to use the REST API can cause the Authoritative server to produce invalid HTTPS or SVCB record data, which can in turn cause LMDB database corruption, if using the LMDB backend.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Integer Overflow or Wraparound
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
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Affected:
5.0.0 , < 5.0.4
(semver)
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Date Public
2026-04-08 22:00
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CVE-2026-33610 (GCVE-0-2026-33610)
Vulnerability from cvelistv5 – Published: 2026-04-22 14:00 – Updated: 2026-04-22 14:26
VLAI
Title
Possible file descriptor exhaustion in forward-dnsupdate
Summary
A rogue primary server may cause file descriptor exhaustion and eventually a denial of service, when a PowerDNS secondary server forwards a DNS update request to it.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Uncontrolled Resource Consumption
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
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Affected:
5.0.0 , < 5.0.4
(semver)
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Date Public
2026-04-08 22:00
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CVE-2026-33609 (GCVE-0-2026-33609)
Vulnerability from cvelistv5 – Published: 2026-04-22 14:00 – Updated: 2026-04-22 14:27
VLAI
Title
LDAP DN injection
Summary
Incomplete escaping of LDAP queries when running with 8bit-dns enabled allows users to perform queries of internal domain subtrees.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
- CWE-90 - Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
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Affected:
5.0.0 , < 5.0.4
(semver)
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Date Public
2026-04-08 22:00
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CVE-2026-33608 (GCVE-0-2026-33608)
Vulnerability from cvelistv5 – Published: 2026-04-22 14:00 – Updated: 2026-04-22 14:28
VLAI
Title
Incomplete domain name sanitization during
Summary
An attacker can send a notify request that causes a new secondary domain to be added to the bind backend, but causes said backend to update its configuration to an invalid one, leading to the backend no longer able to run on the next restart, requiring manual operation to fix it.
Severity
7.4 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Improper Control of Generation of Code ('Code Injection')
- CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
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Affected:
5.0.0 , < 5.0.4
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Date Public
2026-04-08 22:00
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CVE-2026-33593 (GCVE-0-2026-33593)
Vulnerability from cvelistv5 – Published: 2026-04-22 13:48 – Updated: 2026-04-22 14:29
VLAI
Title
Denial of service via crafted DNSCrypt query
Summary
A client can trigger a divide by zero error leading to crash by sending a crafted DNSCrypt query.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Divide By Zero
- CWE-369 - Divide By Zero
Assigner
References
1 reference
Impacted products
Date Public
2026-04-21 22:00
Credits
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CVE-2026-33594 (GCVE-0-2026-33594)
Vulnerability from cvelistv5 – Published: 2026-04-22 13:48 – Updated: 2026-04-22 14:36
VLAI
Title
Outgoing DoH excessive memory allocation
Summary
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.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Allocation of Resources Without Limits or Throttling
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
Date Public
2026-04-21 22:00
Credits
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CVE-2026-33595 (GCVE-0-2026-33595)
Vulnerability from cvelistv5 – Published: 2026-04-22 13:47 – Updated: 2026-04-22 14:40
VLAI
Title
DoQ/DoH3 excessive memory allocation
Summary
A client can trigger excessive memory allocation by generating a lot of errors responses over a single DoQ and DoH3 connection, as some resources were not properly released until the end of the connection.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Allocation of Resources Without Limits or Throttling
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
Date Public
2026-04-21 22:00
Credits
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CVE-2026-33597 (GCVE-0-2026-33597)
Vulnerability from cvelistv5 – Published: 2026-04-22 13:47 – Updated: 2026-04-22 14:41
VLAI
Title
PRSD detection denial of service
Summary
PRSD detection denial of service
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Improper Encoding or Escaping of Output
- CWE-116 - Improper Encoding or Escaping of Output
Assigner
References
1 reference
Impacted products
Date Public
2026-04-21 22:00
Credits
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CVE-2026-33596 (GCVE-0-2026-33596)
Vulnerability from cvelistv5 – Published: 2026-04-22 13:47 – Updated: 2026-04-22 14:43
VLAI
Title
TCP backend stream ID overflow
Summary
A client might theoretically be able to cause a mismatch between queries sent to a backend and the received responses by sending a flood of perfectly timed queries that are routed to a TCP-only or DNS over TLS backend.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Integer Overflow or Wraparound
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
1 reference
Impacted products
Date Public
2026-04-21 22:00
Credits
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CVE-2026-33598 (GCVE-0-2026-33598)
Vulnerability from cvelistv5 – Published: 2026-04-22 13:46 – Updated: 2026-04-22 14:49
VLAI
Title
Out-of-bounds read in cache inspection via Lua
Summary
A cached crafted response can cause an out-of-bounds read if custom Lua code calls getDomainListByAddress() or getAddressListByDomain() on a packet cache.
Severity
4.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Out-of-bounds Read
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
Impacted products
Date Public
2026-04-21 22:00
Credits
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CVE-2026-33599 (GCVE-0-2026-33599)
Vulnerability from cvelistv5 – Published: 2026-04-22 13:46 – Updated: 2026-04-22 14:50
VLAI
Title
Out-of-bounds read in service discovery
Summary
A rogue backend can send a crafted SVCB response to a Discovery of Designated Resolvers request, when requested via either the autoUpgrade (Lua) option to newServer or auto_upgrade (YAML) settings. DDR upgrade is not enabled by default.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Out-of-bounds Read
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
Impacted products
Date Public
2026-04-21 22:00
Credits
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CVE-2026-33602 (GCVE-0-2026-33602)
Vulnerability from cvelistv5 – Published: 2026-04-22 13:45 – Updated: 2026-04-22 14:47
VLAI
Title
Off-by-one access when processing crafted UDP responses
Summary
A rogue backend can send a crafted UDP response with a query ID off by one related to the maximum configured value, triggering an out-of-bounds write leading to a denial of service.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Heap-based Buffer Overflow
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
1 reference
Impacted products
Date Public
2026-04-21 22:00
Credits
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CVE-2026-33254 (GCVE-0-2026-33254)
Vulnerability from cvelistv5 – Published: 2026-04-22 13:45 – Updated: 2026-04-22 14:51
VLAI
Title
Resource exhaustion via DoQ/DoH3 connections
Summary
An attacker can create a large number of concurrent DoQ or DoH3 connections, causing unlimited memory allocation in DNSdist and leading to a denial of service. DOQ and DoH3 are disabled by default.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Allocation of Resources Without Limits or Throttling
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
Date Public
2026-04-21 22:00
Credits
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CVE-2026-33262 (GCVE-0-2026-33262)
Vulnerability from cvelistv5 – Published: 2026-04-22 09:40 – Updated: 2026-04-22 18:09
VLAI
Title
Insufficient validation of cookie reply
Summary
An attacker can send replies that result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service. Cookies are disabled by default.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- NULL Pointer Dereference
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
Impacted products
Date Public
2026-04-21 22:00
Credits
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CVE-2026-33261 (GCVE-0-2026-33261)
Vulnerability from cvelistv5 – Published: 2026-04-22 09:40 – Updated: 2026-04-22 18:09
VLAI
Title
Null pointer accces in aggressive NSEC(3) cache
Summary
A zone transition from NSEC to NSEC3 might trigger an internal inconsistency and cause a denial of service.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Missing Support for Integrity Check
- CWE-353 - Missing Support for Integrity Check
Assigner
References
1 reference
Impacted products
Date Public
2026-04-21 22:00
Credits
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CVE-2026-33260 (GCVE-0-2026-33260)
Vulnerability from cvelistv5 – Published: 2026-04-22 09:39 – Updated: 2026-04-22 18:10
VLAI
Title
Insufficient input validation of internal webserver
Summary
An attacker can send a web request that causes unlimited memory allocation in the internal web server, leading to a denial of service. The internal web server is disabled by default.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Allocation of Resources Without Limits or Throttling
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| PowerDNS | Authoritative |
Affected:
5.0.0 , < 5.0.4
(semver)
Affected: 4.9.0 , < 4.9.14 (semver) |
|
| PowerDNS | DNSdist |
Affected:
1.9.0 , < 1.9.13
(semver)
Affected: 2.0.0 , < 2.0.4 (semver) |
|
| PowerDNS | Recursor |
Affected:
5.4.0 , < 5.4.1
(semver)
Affected: 5.3.0 , < 5.3.6 (semver) Affected: 5.2.0 , < 5.2.9 (semver) |
Date Public
2026-04-21 22:00
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CVE-2026-33259 (GCVE-0-2026-33259)
Vulnerability from cvelistv5 – Published: 2026-04-22 09:38 – Updated: 2026-04-22 18:10
VLAI
Title
Concurrent modification of RPZ data can lead to denial of servce
Summary
Having many concurrent transfers of the same RPZ can lead to inconsistent RPZ data, use after free and/or a crash of the recursor. Normally concurrent transfers of the same RPZ zone can only occur with a malfunctioning RPZ provider.
Severity
5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Use After Free
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
Date Public
2026-04-21 22:00
Credits
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CVE-2026-33258 (GCVE-0-2026-33258)
Vulnerability from cvelistv5 – Published: 2026-04-22 09:38 – Updated: 2026-04-22 18:10
VLAI
Title
Crafted zones can cause increased resource usage
Summary
By publishing and querying a crafted zone an attacker can cause allocation of large entries in the negative and aggressive NSEC(3) caches.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Allocation of Resources Without Limits or Throttling
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
Date Public
2026-04-21 22:00
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CVE-2026-33257 (GCVE-0-2026-33257)
Vulnerability from cvelistv5 – Published: 2026-04-22 09:37 – Updated: 2026-04-22 18:10
VLAI
Title
Insufficient input validation of internal webserver
Summary
An attacker can send a web request that causes unlimited memory allocation in the internal web server, leading to a denial of service. The internal web server is disabled by default.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Allocation of Resources Without Limits or Throttling
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| PowerDNS | Authoritative |
Affected:
5.0.0 , < 5.0.4
(semver)
Affected: 4.9.0 , < 4.9.14 (semver) |
|
| PowerDNS | DNSdist |
Affected:
1.9.0 , < 1.9.13
(semver)
Affected: 2.0.0 , < 2.0.4 (semver) |
|
| PowerDNS | Recursor |
Affected:
5.4.0 , < 5.4.1
(semver)
Affected: 5.3.0 , < 5.3.6 (semver) Affected: 5.2.0 , < 5.2.9 (semver) |
Date Public
2026-04-21 22:00
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CVE-2026-33256 (GCVE-0-2026-33256)
Vulnerability from cvelistv5 – Published: 2026-04-22 09:37 – Updated: 2026-04-22 18:10
VLAI
Title
Unbounded memory allocation by internal web server
Summary
An attacker can send a web request that causes unlimited memory allocation in the internal web server, leading to a denial of service. The internal web server is disabled by default.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Allocation of Resources Without Limits or Throttling
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
Date Public
2026-04-21 22:00
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CVE-2026-33601 (GCVE-0-2026-33601)
Vulnerability from cvelistv5 – Published: 2026-04-22 09:37 – Updated: 2026-04-22 18:10
VLAI
Title
Insufficient validation of zonemd record
Summary
If you use the zoneToCache function with a malicious authoritative server, an attacker can send a zone that result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service.
Severity
4.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- NULL Pointer Dereference
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
Impacted products
Date Public
2026-04-21 22:00
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CVE-2026-33600 (GCVE-0-2026-33600)
Vulnerability from cvelistv5 – Published: 2026-04-22 09:33 – Updated: 2026-04-22 18:10
VLAI
Title
Null pointer dereference in RPZ transfer
Summary
An RPZ sent by a malicious authoritative server can result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service.
Severity
4.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- NULL Pointer Dereference
- CWE-476 - NULL Pointer Dereference
Assigner
References
1 reference
Impacted products
Date Public
2026-04-21 22:00
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CVE-2026-27854 (GCVE-0-2026-27854)
Vulnerability from cvelistv5 – Published: 2026-03-31 12:06 – Updated: 2026-04-02 13:46
VLAI
Title
Use after free when parsing EDNS options in Lua
Summary
An attacker might be able to trigger a use-after-free by sending crafted DNS queries to a DNSdist using the DNSQuestion:getEDNSOptions method in custom Lua code. In some cases DNSQuestion:getEDNSOptions might refer to a version of the DNS packet that has been modified, thus triggering a use-after-free and potentially a crash resulting in denial of service.
Severity
4.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Use After Free
- CWE-416 - Use After Free
Assigner
References
1 reference
Impacted products
Date Public
2026-03-30 22:00
Credits
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CVE-2026-27853 (GCVE-0-2026-27853)
Vulnerability from cvelistv5 – Published: 2026-03-31 12:04 – Updated: 2026-03-31 13:17
VLAI
Title
Out-of-bounds write when rewriting large DNS packets
Summary
An attacker might be able to trigger an out-of-bounds write by sending crafted DNS responses to a DNSdist using the DNSQuestion:changeName or DNSResponse:changeName methods in custom Lua code. In some cases the rewritten packet might become larger than the initial response and even exceed 65535 bytes, potentially leading to a crash resulting in denial of service.
Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Out-of-bounds Write
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
Impacted products
Date Public
2026-03-30 22:00
Credits
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CVE-2026-24030 (GCVE-0-2026-24030)
Vulnerability from cvelistv5 – Published: 2026-03-31 12:01 – Updated: 2026-03-31 13:14
VLAI
Title
Unbounded memory allocation for DoQ and DoH3
Summary
An attacker might be able to trick DNSdist into allocating too much memory while processing DNS over QUIC or DNS over HTTP/3 payloads, resulting in a denial of service. In setups with a large quantity of memory available this usually results in an exception and the QUIC connection is properly closed, but in some cases the system might enter an out-of-memory state instead and terminate the process.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- Uncontrolled Memory Allocation
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
1 reference
Impacted products
Date Public
2026-03-30 22:00
Credits
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