Common Weakness Enumeration
CWE-789
AllowedMemory Allocation with Excessive Size Value
Abstraction: Variant · Status: Draft
The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.
432 vulnerabilities reference this CWE, most recent first.
CVE-2026-91752 (GCVE-0-2026-91752)
Vulnerability from cvelistv5 – Published: 2026-09-15 00:35 – Updated: 2026-09-15 00:35
VLAI
EPSS
VEX
Title
GNU libextractor before 1.15 Stack Overflow via OLE2
Summary
GNU libextractor before 1.15 contains a stack-based buffer overflow vulnerability in the process_star_office function that sizes a variable-length stack array from attacker-controlled OLE2 stream data. Attackers can craft malicious StarOffice documents that allocate up to 4 MB on the stack, causing stack overflow and crashing any application extracting metadata from the document.
Severity
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/Haitam-lazaar/libextractor-ole2-rce | exploitthird-party-advisory |
| https://git.gnunet.org/gnunet/libextractor/commit… | patch |
| https://git.gnunet.org/gnunet/libextractor/commit… | patch |
| https://www.gnu.org/software/libextractor/ | product |
| https://www.vulncheck.com/advisories/gnu-libextra… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| GNU | libextractor |
Affected:
0 , < 1.15
(custom)
cpe:2.3:a:gnu:libextractor:*:*:*:*:*:*:*:* |
Date Public
2026-07-05 00:00
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CVE-2026-89092 (GCVE-0-2026-89092)
Vulnerability from cvelistv5 – Published: 2026-09-11 01:23 – Updated: 2026-09-11 17:02
VLAI
EPSS
VEX
Title
Stack overflow in nscd due to unbounded alloca use
Summary
The nscd service in the GNU C Library 2.3.4 onwards may crash due to a
stack overflow when a malicious DNS server returns too large a response
for a DNS query, resulting in degraded DNS resolution for the system.
Exploitation of this bug needs a system that has nscd enabled and using
an untrusted DNS server for name resolution, with the compromised DNS
server being capable of processing records large enough to result in a
stack overflow in an nscd thread stack. During experimentation, bind 9
was unable to handle large records, but that could change in future or
with a different name server. In typical installations, nscd is
executed in an isolated context as its own user without a shell, due to
which any compromise of that service is isolated.
There is a remote possibility of nscd cache corruption if an attacker
manages to get the stack pointer into a desired point in the heap,
potentially resulting in other caches in nscd being overwritten with
corrupt data through the stack overflow, until the buggy code path
eventually results in a crash.
Finally, a crash in nscd may result in performance degradation when
resolving names, but it does not result in a denial of service.
Severity
4.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 16:57 UTC
CWE
- CWE-789 - Memory allocation with excessive size value
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://sourceware.org/bugzilla/show_bug.cgi?id=34624 | issue-tracking |
| https://sourceware.org/git/?p=glibc.git;a=blob_pl… | vendor-advisory |
| http://www.openwall.com/lists/oss-security/2026/09/11/2 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| The GNU C Library | glibc |
Affected:
2.3.4 , < 2.45
(custom)
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CVE-2026-88045 (GCVE-0-2026-88045)
Vulnerability from cvelistv5 – Published: 2026-09-10 16:11 – Updated: 2026-09-10 17:31
VLAI
EPSS
VEX
Title
rclone: S3 multipart declared-length memory exhaustion
Summary
rclone is a command-line program to sync files and directories to and from different cloud storage providers. From 1.75.0 until 1.75.1, the serve S3 streamed multipart path in cmd/serve/s3/multipart.go passes attacker-controlled contentLength to multipart.NewRW().Reserve before reading request-body bytes. waitForTurn admits the current part and one oversized part when the buffer is empty despite --multipart-streaming-buffer-limit, and lib/pool allocates 1 MiB pages according to Content-Length or X-Amz-Decoded-Content-Length. A network client can retain or multiply these reservations without sending the declared body, exhausting process or host memory or permanently blocking request handlers. Anonymous S3 deployments require no credentials, while deployments using auth_key require an accepted S3 key. This issue is fixed in version 1.75.1.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 17:31 UTC
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/rclone/rclone/security/advisor… | x_refsource_CONFIRM |
| https://github.com/rclone/rclone/issues/9616 | x_refsource_MISC |
| https://github.com/rclone/rclone/commit/7c1dfd99f… | x_refsource_MISC |
| https://github.com/rclone/rclone/commit/ab1f45801… | x_refsource_MISC |
| https://github.com/rclone/rclone/releases/tag/v1.75.1 | x_refsource_MISC |
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CVE-2026-86776 (GCVE-0-2026-86776)
Vulnerability from cvelistv5 – Published: 2026-09-09 10:07 – Updated: 2026-09-10 14:58
VLAI
EPSS
VEX
Title
KeePass 2.35 through 2.61.1 Memory Exhaustion via KDBX Header Field Size
Summary
KeePass versions 2.35 through 2.61.1 fail to validate KDBX header field sizes before memory allocation in the ReadHeaderField function. Attackers can craft a malicious KDBX file declaring excessive header field lengths to trigger allocation of gigabytes of memory, causing the application to consume resources and terminate.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 13:48 UTC
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/KSecur1ty/KDBX-Header-Size-Mir… | exploittechnical-description |
| https://keepass.info/ | product |
| https://keepass.info/download.html | product |
| https://www.vulncheck.com/advisories/keepass-2.35… | third-party-advisory |
Impacted products
Date Public
2026-08-13 00:00
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CVE-2026-85445 (GCVE-0-2026-85445)
Vulnerability from cvelistv5 – Published: 2026-09-03 22:38 – Updated: 2026-09-04 17:21
VLAI
EPSS
VEX
Title
MOOS-IvP through 24.8.1 BHV_IPF Demultiplexer Memory Exhaustion via Packet Count
Summary
MOOS-IvP through 24.8.1 contains a denial of service vulnerability in the Demuxer::addMuxPacket() function that trusts the packet count declared in mux headers without validation. Attackers can declare arbitrarily large packet counts to trigger unbounded memory allocation, exhausting system resources and causing service unavailability.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 17:20 UTC
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/moos-ivp/moos-ivp/pull/129 | issue-trackingpatch |
| https://github.com/moos-ivp/moos-ivp/commit/fc564… | patch |
| https://github.com/moos-ivp/moos-ivp | product |
| https://github.com/moos-ivp/moos-ivp/blob/1de9ae1… | technical-description |
| https://www.vulncheck.com/advisories/moos-ivp-thr… | third-party-advisory |
Impacted products
Date Public
2026-09-02 00:00
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CVE-2026-85442 (GCVE-0-2026-85442)
Vulnerability from cvelistv5 – Published: 2026-09-03 22:38 – Updated: 2026-09-04 18:39
VLAI
EPSS
VEX
Title
MOOS core-moos through 10.4.0 MOOSDB Denial of Service via Unbounded Packet Allocation
Summary
MOOS core-moos through 10.4.0 fails to validate packet length declarations in CMOOSCommPkt::OnBytesWritten(), allowing unauthenticated attackers to trigger unbounded buffer allocation by sending crafted wire packets. Attackers can send packets with large declared lengths to exhaust server memory and cause denial of service before client authentication completes.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 18:39 UTC
CWE
- CWE-789 - Memory Allocation with Excessive Size Value
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/themoos/core-moos/pull/81 | issue-trackingpatch |
| https://github.com/themoos/core-moos/commit/e7ea6… | patch |
| https://github.com/themoos/core-moos | product |
| https://github.com/themoos/core-moos/blob/ec9c77c… | technical-description |
| https://www.vulncheck.com/advisories/moos-core-mo… | third-party-advisory |
Impacted products
Date Public
2026-09-01 00:00
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CVE-2026-85201 (GCVE-0-2026-85201)
Vulnerability from cvelistv5 – Published: 2026-09-07 10:01 – Updated: 2026-09-08 15:06
VLAI
EPSS
VEX
Summary
In Eclipse Ankaios versions 0.1.0 through 1.0.1, the agent does not limit the length declared by a workload in a length-delimited protobuf message received through the Control Interface FIFO. A workload granted Control Interface access can specify an excessive message length, causing an unbounded memory allocation that may abort the Ankaios agent process. This results in loss of orchestration services for workloads managed by the affected agent.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 15:05 UTC
CWE
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse Ankaios |
Affected:
0.1.0 , ≤ 1.0.1
(semver)
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CVE-2026-84888 (GCVE-0-2026-84888)
Vulnerability from cvelistv5 – Published: 2026-09-02 21:15 – Updated: 2026-09-03 14:31
VLAI
EPSS
VEX
Title
RightNow-AI OpenFang tool_runner.rs shell_exec memory allocation
Summary
A weakness has been identified in RightNow-AI OpenFang up to 0.6.9. This vulnerability affects the function shell_exec of the file crates/openfang-runtime/src/tool_runner.rs. This manipulation causes uncontrolled memory allocation. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 13:15 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/398138 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/398138/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-84888 | third-party-advisory |
| https://vuldb.com/submit/886466 | third-party-advisory |
| https://github.com/outlookgp/CVE/tree/main/OpenFa… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| RightNow-AI | OpenFang |
Affected:
0.6.0
Affected: 0.6.1 Affected: 0.6.2 Affected: 0.6.3 Affected: 0.6.4 Affected: 0.6.5 Affected: 0.6.6 Affected: 0.6.7 Affected: 0.6.8 Affected: 0.6.9 cpe:2.3:a:rightnow-ai:openfang:*:*:*:*:*:*:*:* |
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CVE-2026-84857 (GCVE-0-2026-84857)
Vulnerability from cvelistv5 – Published: 2026-09-02 20:00 – Updated: 2026-09-03 15:36
VLAI
EPSS
VEX
Title
sigoden aichat API Endpoint serve.rs memory allocation
Summary
A flaw has been found in sigoden aichat up to 0.30.4. This affects an unknown function of the file src/serve.rs of the component API Endpoint. This manipulation causes uncontrolled memory allocation. The attack can be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 15:36 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/398132 | vdb-entry |
| https://vuldb.com/vuln/398132/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-84857 | third-party-advisory |
| https://vuldb.com/submit/886265 | third-party-advisory |
| https://github.com/outlookgp/CVE/tree/main/AIChat… | exploit |
Impacted products
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CVE-2026-84289 (GCVE-0-2026-84289)
Vulnerability from cvelistv5 – Published: 2026-09-01 21:45 – Updated: 2026-09-02 16:01
VLAI
EPSS
VEX
Title
NousResearch hermes-agent MCP Tool mcp_tool.py list_tools memory allocation
Summary
A vulnerability was found in NousResearch hermes-agent up to 0.18.2. This vulnerability affects the function list_tools of the file tools/mcp_tool.py of the component MCP Tool. Performing a manipulation results in uncontrolled memory allocation. It is possible to initiate the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-02 13:18 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/397720 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/397720/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-84289 | third-party-advisory |
| https://vuldb.com/submit/882960 | third-party-advisory |
| https://github.com/lche511/cve/blob/main/Hermes_M… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| NousResearch | hermes-agent |
Affected:
0.18.0
Affected: 0.18.1 Affected: 0.18.2 cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:* |
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Mitigation
Implementation
Architecture and Design
Perform adequate input validation against any value that influences the amount of memory that is allocated. Define an appropriate strategy for handling requests that exceed the limit, and consider supporting a configuration option so that the administrator can extend the amount of memory to be used if necessary.
Mitigation
Operation
Run your program using system-provided resource limits for memory. This might still cause the program to crash or exit, but the impact to the rest of the system will be minimized.
No CAPEC attack patterns related to this CWE.