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.
753 vulnerabilities reference this CWE, most recent first.
CVE-2026-3520 (GCVE-0-2026-3520)
Vulnerability from cvelistv5 – Published: 2026-03-04 16:17 – Updated: 2026-07-15 01:03
VLAI
EPSS
VEX
Title
Multer vulnerable to Denial of Service via uncontrolled recursion
Summary
Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability in Multer prior to version 2.1.1 allows an attacker to trigger a Denial of Service (DoS) by sending malformed requests, potentially causing stack overflow. Users should upgrade to version 2.1.1 to receive a patch. No known workarounds are available.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-04 17:12 UTC
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://github.com/expressjs/multer/security/advi… | |
| https://www.cve.org/CVERecord?id=CVE-2026-3520 | |
| https://github.com/expressjs/multer/commit/7e6648… | |
| https://cna.openjsf.org/security-advisories.html | |
| https://access.redhat.com/security/cve/CVE-2026-3520 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2444584 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
| https://access.redhat.com/errata/RHSA-2026:6174 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:6802 | vendor-advisoryx_refsource_REDHAT |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| expressjs | multer |
Affected:
0 , < 2.1.1
(semver)
|
|
| Red Hat | Red Hat Developer Hub 1.8 |
Unaffected:
1774545605 , < *
(rpm)
cpe:/a:redhat:rhdh:1.8::el9 |
|
| Red Hat | Red Hat Developer Hub 1.9 |
Unaffected:
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(rpm)
cpe:/a:redhat:rhdh:1.9::el9 |
|
| Red Hat | Self-service automation portal 2 |
cpe:/a:redhat:ansible_portal:2
|
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CVE-2026-3388 (GCVE-0-2026-3388)
Vulnerability from cvelistv5 – Published: 2026-03-01 09:32 – Updated: 2026-03-02 15:12
VLAI
EPSS
VEX
Title
Squirrel sqcompiler.cpp UnaryOP recursion
Summary
A vulnerability was found in Squirrel up to 3.2. This affects the function SQCompiler::Factor/SQCompiler::UnaryOP of the file squirrel/sqcompiler.cpp. Performing a manipulation results in uncontrolled recursion. The attack needs to be approached locally. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-02 15:10 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.348274 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.348274 | signaturepermissions-required |
| https://vuldb.com/?submit.761314 | third-party-advisory |
| https://github.com/albertodemichelis/squirrel/iss… | issue-tracking |
| https://github.com/oneafter/0122/blob/main/i312/repro | exploit |
Impacted products
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CVE-2026-3385 (GCVE-0-2026-3385)
Vulnerability from cvelistv5 – Published: 2026-03-01 08:32 – Updated: 2026-03-02 19:34
VLAI
EPSS
VEX
Title
wren-lang wren wren_compiler.c resolveLocal recursion
Summary
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Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-02 19:34 UTC
Assigner
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| URL | Tags |
|---|---|
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| https://vuldb.com/?submit.761305 | third-party-advisory |
| https://github.com/wren-lang/wren/issues/1218 | issue-tracking |
| https://github.com/oneafter/0122/blob/main/i1218/repro | exploit |
| https://github.com/wren-lang/wren/ | product |
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CVE-2026-3384 (GCVE-0-2026-3384)
Vulnerability from cvelistv5 – Published: 2026-03-01 08:02 – Updated: 2026-03-02 19:33
VLAI
EPSS
VEX
Title
ChaiScript chaiscript_eval.hpp Function_Push_Pop recursion
Summary
A security vulnerability has been detected in ChaiScript up to 6.1.0. This impacts the function chaiscript::eval::AST_Node_Impl::eval/chaiscript::eval::Function_Push_Pop of the file include/chaiscript/language/chaiscript_eval.hpp. The manipulation leads to uncontrolled recursion. An attack has to be approached locally. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-02 19:33 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.348270 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.348270 | signaturepermissions-required |
| https://vuldb.com/?submit.761303 | third-party-advisory |
| https://github.com/ChaiScript/ChaiScript/issues/633 | issue-tracking |
| https://github.com/ChaiScript/ChaiScript/issues/6… | exploitissue-tracking |
| https://github.com/ChaiScript/ChaiScript/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | ChaiScript |
Affected:
6.0
Affected: 6.1.0 |
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CVE-2026-2887 (GCVE-0-2026-2887)
Vulnerability from cvelistv5 – Published: 2026-02-21 21:02 – Updated: 2026-02-23 19:30 X_Open Source
VLAI
EPSS
VEX
Title
aardappel lobster idents.h TypeName recursion
Summary
A security vulnerability has been detected in aardappel lobster up to 2025.4. This impacts the function lobster::TypeName in the library dev/src/lobster/idents.h. Such manipulation leads to uncontrolled recursion. The attack can only be performed from a local environment. The exploit has been disclosed publicly and may be used. Upgrading to version 2026.1 will fix this issue. The name of the patch is 8ba49f98ccfc9734ef352146806433a41d9f9aa6. It is advisable to upgrade the affected component.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-23 19:30 UTC
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.347181 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.347181 | signaturepermissions-required |
| https://vuldb.com/?submit.755026 | third-party-advisory |
| https://github.com/aardappel/lobster/issues/397 | issue-tracking |
| https://github.com/aardappel/lobster/issues/397#i… | issue-tracking |
| https://github.com/oneafter/0204/blob/main/lob3/r… | exploit |
| https://github.com/aardappel/lobster/commit/8ba49… | patch |
| https://github.com/aardappel/lobster/releases/tag… | patch |
| https://github.com/aardappel/lobster/ | product |
Impacted products
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CVE-2026-2641 (GCVE-0-2026-2641)
Vulnerability from cvelistv5 – Published: 2026-02-18 05:32 – Updated: 2026-02-23 10:16
VLAI
EPSS
VEX
Title
universal-ctags V Language v.c parseExprList recursion
Summary
A weakness has been identified in universal-ctags ctags up to 6.2.1. The affected element is the function parseExpression/parseExprList of the file parsers/v.c of the component V Language Parser. Executing a manipulation can lead to uncontrolled recursion. It is possible to launch the attack on the local host. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-18 20:30 UTC
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.346397 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.346397 | signaturepermissions-required |
| https://vuldb.com/?submit.752768 | third-party-advisory |
| https://github.com/universal-ctags/ctags/issues/4369 | issue-tracking |
| https://github.com/oneafter/0116/blob/main/poc.v | exploit |
| https://github.com/universal-ctags/ctags/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| universal-ctags | ctags |
Affected:
6.2.0
Affected: 6.2.1 |
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CVE-2026-1849 (GCVE-0-2026-1849)
Vulnerability from cvelistv5 – Published: 2026-02-10 18:52 – Updated: 2026-02-10 19:17
VLAI
EPSS
VEX
Title
Mongod can run out of stack memory when expressions create deeply nested documents
Summary
MongoDB Server may experience an out-of-memory failure while evaluating expressions that produce deeply nested documents. The issue arises in recursive functions because the server does not periodically check the depth of the expression.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-10 19:16 UTC
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB Inc | MongoDB Server |
Affected:
8.0 , < 8.0.18
(semver)
Affected: 7.0 , < 7.0.29 (semver) Affected: 8.2 , < 8.2.2 (semver) |
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CVE-2026-1681 (GCVE-0-2026-1681)
Vulnerability from cvelistv5 – Published: 2026-05-12 05:39 – Updated: 2026-05-12 13:15
VLAI
EPSS
VEX
Title
net: Stack Overflow with Ping (to own IP Address) via Shell
Summary
Issuing an ICMP ping via the `net ping` shell command to a device's own IPv4 address causes the network stack to recursively re-enter the input path on the same system work-queue stack. Because the destination is recognized as a local address, both the echo request and the resulting echo reply are processed inline before the current frame returns. The nested input-path frames exceed the work-queue stack and trigger a stack overflow.
Severity
6.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-12 13:15 UTC
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| zephyrproject-rtos | Zephyr |
Affected:
* , ≤ 4.3
(git)
|
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CVE-2026-1069 (GCVE-0-2026-1069)
Vulnerability from cvelistv5 – Published: 2026-03-11 16:05 – Updated: 2026-03-11 19:39
VLAI
EPSS
VEX
Title
Uncontrolled Recursion in GitLab
Summary
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.9 before 18.9.2 that could have allowed an unauthenticated user to cause a denial of service by sending specially crafted GraphQL requests due to uncontrolled recursion under certain circumstances.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-11 19:39 UTC
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://hackerone.com/reports/3483687 | technical-descriptionexploitpermissions-required |
| https://gitlab.com/gitlab-org/gitlab/-/work_items… | |
| https://about.gitlab.com/releases/2026/03/11/patc… |
Impacted products
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CVE-2026-0994 (GCVE-0-2026-0994)
Vulnerability from cvelistv5 – Published: 2026-01-23 14:55 – Updated: 2026-09-01 12:04
VLAI
EPSS
VEX
Title
Denial of Service in Python Protobuf
Summary
A denial-of-service (DoS) vulnerability exists in google.protobuf.json_format.ParseDict() in Python, where the max_recursion_depth limit can be bypassed when parsing nested google.protobuf.Any messages.
Due to missing recursion depth accounting inside the internal Any-handling logic, an attacker can supply deeply nested Any structures that bypass the intended recursion limit, eventually exhausting Python’s recursion stack and causing a RecursionError.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-23 15:33 UTC
CWE
- CWE-674 - Uncontrolled Recursion
Assigner
References
21 references
Impacted products
21 products
| Vendor | Product | Version | |
|---|---|---|---|
| Python | Protobuf |
Affected:
<=v33.4
(custom)
|
|
| Red Hat | Red Hat Ansible Automation Platform 2.5 for RHEL 8 |
Unaffected:
0:5.29.6-1.el8ap , < *
(rpm)
cpe:/a:redhat:ansible_automation_platform:2.5::el8 |
|
| Red Hat | Red Hat Ansible Automation Platform 2.5 for RHEL 9 |
Unaffected:
0:5.29.6-1.el9ap , < *
(rpm)
cpe:/a:redhat:ansible_automation_platform:2.5::el9 |
|
| Red Hat | Red Hat Ansible Automation Platform 2.6 for RHEL 9 |
Unaffected:
0:5.29.6-1.el9ap , < *
(rpm)
cpe:/a:redhat:ansible_automation_platform:2.6::el9 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:3.19.6-15.el10_1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.1 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:3.19.6-11.el10_0.1 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:3.14.0-17.el9_7 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions |
Unaffected:
0:3.14.0-9.el9_0.1 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.0 |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:3.14.0-13.el9_2.1 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.2 |
|
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support |
Unaffected:
0:3.14.0-13.el9_4.1 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.4 |
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
0:3.14.0-16.el9_6.1 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.6 |
|
| Red Hat | Red Hat AI Inference Server 3.2 |
Unaffected:
1772160593 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.2::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.2 |
Unaffected:
1772160625 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.2::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.3 |
Unaffected:
1778244546 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.3::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.3 |
Unaffected:
1775680192 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.3::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.3 |
Unaffected:
1775680262 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.3::el9 |
|
| Red Hat | Red Hat AI Inference Server 3.3 |
Unaffected:
1775749857 , < *
(rpm)
cpe:/a:redhat:ai_inference_server:3.3::el9 |
|
| Red Hat | Red Hat AMQ Clients |
cpe:/a:redhat:amq_clients:2023
|
|
| Red Hat | Red Hat Ansible Automation Platform 2 |
cpe:/a:redhat:ansible_automation_platform:2
|
|
| Red Hat | Red Hat Hardened Images |
cpe:/a:redhat:hummingbird:1
|
|
| Red Hat | Red Hat OpenStack Platform 16.2 |
cpe:/a:redhat:openstack:16.2
|
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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.