Common Weakness Enumeration
CWE-674
Allowed-with-ReviewUncontrolled Recursion
Abstraction: Class · Status: Draft
The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.
778 vulnerabilities reference this CWE, most recent first.
CVE-2026-91968 (GCVE-0-2026-91968)
Vulnerability from cvelistv5 – Published: 2026-09-15 15:18 – Updated: 2026-09-15 15:56
VLAI
EPSS
VEX
Title
vikunja before 2.6.0 Denial of Service via unbounded filter recursion
Summary
vikunja versions before 2.6.0 contain a resource exhaustion vulnerability in the task-filter endpoint that accepts deeply nested filter expressions without recursion depth limits. Authenticated attackers can supply thousands of nested parentheses in the filter query parameter to exhaust memory and terminate the API process.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-15 15:55 UTC
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/go-vikunja/vikunja/security/ad… | vendor-advisory |
| https://www.vulncheck.com/advisories/vikunja-befo… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| go-vikunja | vikunja |
Affected:
2.5.0 , < 2.6.0
(semver)
Unaffected: 2.6.0 (semver) cpe:2.3:a:vikunja:vikunja:*:*:*:*:*:*:*:* |
Date Public
2026-08-31 00:00
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CVE-2026-90472 (GCVE-0-2026-90472)
Vulnerability from cvelistv5 – Published: 2026-09-12 11:06 – Updated: 2026-09-14 16:08
VLAI
EPSS
VEX
Title
msgpack-java through 0.9.12 Stack Overflow via Nested Arrays
Summary
msgpack-java through 0.9.12 contains a stack overflow vulnerability in MessageUnpacker.unpackValue() that recursively deserializes arrays and maps without nesting depth limits. Attackers can craft payloads with deeply nested arrays to exhaust the deserializing thread's stack and trigger StackOverflowError, causing per-request deserialization failures.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 16:06 UTC
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/msgpack/msgpack-java/issues/1015 | issue-tracking |
| https://github.com/msgpack/msgpack-java/blob/v0.9… | technical-description |
| https://github.com/msgpack/msgpack-java | product |
| https://www.vulncheck.com/advisories/msgpack-java… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| msgpack | msgpack-java |
Affected:
0 , ≤ 0.9.12
(semver)
cpe:2.3:a:msgpack:messagepack:*:*:*:*:*:java:*:* |
Date Public
2026-08-07 00:00
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CVE-2026-89418 (GCVE-0-2026-89418)
Vulnerability from cvelistv5 – Published: 2026-09-17 13:27 – Updated: 2026-09-17 13:27
VLAI
EPSS
VEX
Title
Uncontrolled Recursion leading to Denial of Service in protobuf-javascript (google-protobuf)
Summary
google-protobuf contains an unbounded recursion when parsing unknown protobuf group fields. An attacker can send a small crafted payload of deeply nested START_GROUP wire bytes to any Node.js service that calls the generated deserializeBinary() API, causing a RangeError: Maximum call stack size exceeded and crashing the process. No authentication or prior knowledge of the schema is required.
Severity
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| protobuf-javascript (aka google-protobuf npm package) |
Affected:
All versions
|
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CVE-2026-88763 (GCVE-0-2026-88763)
Vulnerability from cvelistv5 – Published: 2026-09-10 07:09 – Updated: 2026-09-14 16:36
VLAI
EPSS
VEX
Title
Skupper-router: skupper-router: unbounded recursion in amqp field parser leads to denial of service
Summary
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Severity
5.9 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 16:36 UTC
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-88763 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2531301 | issue-trackingx_refsource_REDHAT |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Service Interconnect 2 |
cpe:/a:redhat:service_interconnect:2
|
Date Public
2026-09-10 06:56
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CVE-2026-84851 (GCVE-0-2026-84851)
Vulnerability from cvelistv5 – Published: 2026-09-02 20:19 – Updated: 2026-09-03 13:15
VLAI
EPSS
VEX
Title
Uncontrolled recursion in the Ion reader in Amazon Ion-C before 1.1.6
Summary
An uncontrolled recursion issue exists in Amazon Ion-C versions before 1.1.6 that might allow a remote unauthenticated actor to craft Ion data that exhausts the native call stack and crashes the application using the library, resulting in a denial of service.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 13:15 UTC
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/amazon-ion/ion-c/releases/tag/v1.1.6 | release-notespatch |
| https://aws.amazon.com/security/security-bulletin… | vendor-advisory |
| https://github.com/amazon-ion/ion-c/security/advi… | release-notes |
Impacted products
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CVE-2026-84175 (GCVE-0-2026-84175)
Vulnerability from cvelistv5 – Published: 2026-09-02 09:45 – Updated: 2026-09-02 12:53
VLAI
EPSS
VEX
Summary
In Eclipse Ditto versions 3.0.0 to 3.9.6, the Things service fetches WoT (Web of Things) ThingModels over HTTP from URLs supplied by API users in the definition field of a Thing or Feature, without validating the target host, and follows HTTP redirects without re-validating the redirect target and without a hop limit. An authenticated user who is permitted to create a Thing, or who holds WRITE permission on an existing Thing, can thereby cause the Things service to issue arbitrary HTTP GET requests from inside the deployment's network — including to cloud instance-metadata endpoints and other internal services — and can use the differing error responses returned to the caller to enumerate internal services. Versions 2.4.0 to 2.5.x contain the same code, but are only affected where the operator explicitly enabled the WoT integration feature toggle, which is disabled by default in those versions.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 12:53 UTC
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse Ditto |
Affected:
3.9.0 , ≤ 3.9.6
(semver)
Affected: 3.0.0 , ≤ 3.8.12 (semver) Affected: 2.4.0 , < 3.0.0 (semver) |
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CVE-2026-82797 (GCVE-0-2026-82797)
Vulnerability from cvelistv5 – Published: 2026-08-31 11:28 – Updated: 2026-08-31 14:27
VLAI
EPSS
VEX
Summary
Uncontrolled Recursion vulnerability in Samsung Open Source rlottie allows Serialized Data with Nested Payloads.
This issue affects rlottie: before 8de0d9e6ca80ffef654965505981727b9fa06a51.
Severity
5.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 14:27 UTC
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Samsung Open Source | rlottie |
Affected:
0 , < 8de0d9e6ca80ffef654965505981727b9fa06a51
(git)
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CVE-2026-82604 (GCVE-0-2026-82604)
Vulnerability from cvelistv5 – Published: 2026-08-31 02:00 – Updated: 2026-08-31 16:10
VLAI
EPSS
VEX
Title
BareBones BBEdit Java Language recursion
Summary
A flaw has been found in BareBones BBEdit up to 15.5.5. Impacted is an unknown function of the component Java Language Module. This manipulation causes uncontrolled recursion. Remote exploitation of the attack is possible. Upgrading to version 16.0 is recommended to address this issue. You should upgrade the affected component.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-31 16:10 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/397106 | vdb-entry |
| https://vuldb.com/vuln/397106/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-82604 | third-party-advisory |
| https://vuldb.com/submit/892839 | third-party-advisory |
| https://ciphersecuritylabs.com/research/articles/… | related |
| https://www.barebones.com/support/bbedit/notes-16… | related |
| https://www.barebones.com/store/bbedit_upgrades.html | patch |
Impacted products
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CVE-2026-81928 (GCVE-0-2026-81928)
Vulnerability from cvelistv5 – Published: 2026-09-01 23:14 – Updated: 2026-09-02 19:24
VLAI
EPSS
VEX
Title
Net::DNS versions before 1.57 for Perl allow memory exhaustion via unbounded recursion in sig_data when re-encoding a message with a misplaced TSIG record
Summary
Net::DNS versions before 1.57 for Perl allow memory exhaustion via unbounded recursion in sig_data when re-encoding a message with a misplaced TSIG record.
sig_data signs a message by re-encoding it, and removes TSIG records only from the additional section. A TSIG decoded into the answer or authority section survives that step and is signed again, so encoding re-enters sig_data with no termination condition. Decoding does not reject such a message: a TSIG that is not the last record on the wire raises "misplaced or corrupt TSIG", but the error is caught, reported as a warning, and the record is left in the packet. RFC 8945 section 5.2 requires the message to be dropped.
The recursion is reached only when the decoded TSIG carries an empty MAC, since a MAC recovered from the wire short-circuits the signing step. It is reached only from code that re-encodes a message it decoded, such as a forwarder or a proxy. A decoded message that is never re-encoded is unaffected. Message direction does not matter: a query reaches the same path as a response.
Each cycle re-encodes the whole message, so fewer than 100 bytes on the wire exhaust available memory and terminate the process.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 19:23 UTC
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
6 references
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CVE-2026-81724 (GCVE-0-2026-81724)
Vulnerability from cvelistv5 – Published: 2026-08-27 14:51 – Updated: 2026-08-27 18:29
VLAI
EPSS
VEX
Title
NLTK before 3.10.3 Denial of Service via Uncontrolled Recursion
Summary
NLTK before 3.10.3 contains an uncontrolled recursion vulnerability in nltk.featstruct.FeatStructReader that allows unauthenticated attackers to cause a denial of service by supplying deeply nested feature-structure input. Attackers can craft trivial payloads with nested brackets that exceed Python's recursion limit and raise an unhandled RecursionError, crashing applications that parse user-supplied feature structures or feature grammars.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-27 18:28 UTC
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/nltk/nltk/security/advisories/… | vendor-advisory |
| https://www.vulncheck.com/advisories/nltk-before-… | third-party-advisory |
Impacted products
Date Public
2026-08-12 00:00
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Mitigation
Implementation
Ensure that an end condition will be reached under all logic conditions. The end condition may include checking against the depth of recursion and exiting with an error if the recursion goes too deep. The complexity of the end condition contributes to the effectiveness of this action.
Mitigation
Implementation
Increase the stack size.
CAPEC-230: Serialized Data with Nested Payloads
Applications often need to transform data in and out of a data format (e.g., XML and YAML) by using a parser. It may be possible for an adversary to inject data that may have an adverse effect on the parser when it is being processed. Many data format languages allow the definition of macro-like structures that can be used to simplify the creation of complex structures. By nesting these structures, causing the data to be repeatedly substituted, an adversary can cause the parser to consume more resources while processing, causing excessive memory consumption and CPU utilization.
CAPEC-231: Oversized Serialized Data Payloads
An adversary injects oversized serialized data payloads into a parser during data processing to produce adverse effects upon the parser such as exhausting system resources and arbitrary code execution.