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CWE-190
Integer Overflow or Wraparound
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
CVE-2026-32239 (GCVE-0-2026-32239)
Vulnerability from cvelistv5 – Published: 2026-03-12 19:33 – Updated: 2026-03-13 16:15
VLAI
Title
Cap'n Proto has an integer overflow in KJ-HTTP
Summary
Cap'n Proto is a data interchange format and capability-based RPC system. Prior to 1.4.0, a negative Content-Length value was converted to unsigned, treating it as an impossibly large length instead. In theory, this bug could enable HTTP request/response smuggling. This vulnerability is fixed in 1.4.0.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/capnproto/capnproto/security/a… | x_refsource_CONFIRM |
| https://github.com/capnproto/capnproto/commit/274… | x_refsource_MISC |
| https://github.com/capnproto/capnproto/commit/e92… | x_refsource_MISC |
| https://capnproto.org/capnproto-c++-1.4.0.tar.gz | x_refsource_MISC |
| https://capnproto.org/capnproto-c++-win32-1.4.0.zip | x_refsource_MISC |
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CVE-2026-32316 (GCVE-0-2026-32316)
Vulnerability from cvelistv5 – Published: 2026-04-13 17:49 – Updated: 2026-04-13 18:56
VLAI
Title
jq: Integer overflow in jvp_string_append() allows Heap-based Buffer Overflow
Summary
jq is a command-line JSON processor. An integer overflow vulnerability exists through version 1.8.1 within the jvp_string_append() and jvp_string_copy_replace_bad functions, where concatenating strings with a combined length exceeding 2^31 bytes causes a 32-bit unsigned integer overflow in the buffer allocation size calculation, resulting in a drastically undersized heap buffer. Subsequent memory copy operations then write the full string data into this undersized buffer, causing a heap buffer overflow classified as CWE-190 (Integer Overflow) leading to CWE-122 (Heap-based Buffer Overflow). Any system evaluating untrusted jq queries is affected, as an attacker can crash the process or potentially achieve further exploitation through heap corruption by crafting queries that produce extremely large strings. The root cause is the absence of string size bounds checking, unlike arrays and objects which already have size limits. The issue has been addressed in commit e47e56d226519635768e6aab2f38f0ab037c09e5.
Severity
8.2 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/jqlang/jq/security/advisories/… | x_refsource_CONFIRM |
| https://github.com/jqlang/jq/commit/e47e56d226519… | x_refsource_MISC |
Impacted products
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CVE-2026-32759 (GCVE-0-2026-32759)
Vulnerability from cvelistv5 – Published: 2026-03-19 23:31 – Updated: 2026-06-09 11:51
VLAI
Title
File Browser TUS Negative Upload-Length Fires Post-Upload Hooks Prematurely
Summary
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. In versions on the 2.x branch prior to 2.33.8, the TUS resumable upload handler parses the Upload-Length header as a signed 64-bit integer without validating that the value is non-negative, allowing an authenticated user to supply a negative value that instantly satisfies the upload completion condition upon the first PATCH request. This causes the server to fire after_upload exec hooks with empty or partial files, enabling an attacker to repeatedly trigger any configured hook with arbitrary filenames and zero bytes written. The impact ranges from DoS through expensive processing hooks, to command injection amplification when combined with malicious filenames, to abuse of upload-driven workflows like S3 ingestion or database inserts. Even without exec hooks enabled, the negative Upload-Length creates inconsistent cache entries where files are marked complete but contain no data. All deployments using the TUS upload endpoint (/api/tus) are affected, with the enableExec flag escalating the impact from cache inconsistency to remote command execution. This feature has been disabled by default for all installations from v2.33.8 onwards, including for existent installations. To exploit this vulnerability, the instance administrator must turn on a feature and ignore all the warnings about known vulnerabilities.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/filebrowser/filebrowser/securi… | x_refsource_CONFIRM |
| https://github.com/filebrowser/filebrowser/issues/5199 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| filebrowser | filebrowser |
Affected:
< 2.33.8
|
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CVE-2026-3284 (GCVE-0-2026-3284)
Vulnerability from cvelistv5 – Published: 2026-02-27 03:02 – Updated: 2026-02-27 18:49 X_Open Source
VLAI
Title
libvips extract.c vips_extract_area_build integer overflow
Summary
A vulnerability was found in libvips 8.19.0. Impacted is the function vips_extract_area_build of the file libvips/conversion/extract.c. The manipulation of the argument extract_area results in integer overflow. The attack requires a local approach. The exploit has been made public and could be used. The patch is identified as 24795bb3d19d84f7b6f5ed86451ad556c8f2fe70. It is advisable to implement a patch to correct this issue.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.348013 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.348013 | signaturepermissions-required |
| https://vuldb.com/?submit.758864 | third-party-advisory |
| https://github.com/libvips/libvips/issues/4879 | issue-tracking |
| https://github.com/libvips/libvips/pull/4887 | issue-trackingpatch |
| https://github.com/libvips/libvips/issues/4879#is… | exploitissue-tracking |
| https://github.com/libvips/libvips/commit/24795bb… | patch |
| https://github.com/libvips/libvips/ | product |
Impacted products
Credits
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CVE-2026-32845 (GCVE-0-2026-32845)
Vulnerability from cvelistv5 – Published: 2026-03-23 15:50 – Updated: 2026-06-23 16:15
VLAI
Title
jkuhlmann / cgltf <= 1.15 Sparse Accessor Validation Integer Overflow
Summary
cgltf version 1.15 and prior contain an integer overflow vulnerability in the cgltf_validate() function when validating sparse accessors that allows attackers to trigger out-of-bounds reads by supplying crafted glTF/GLB input files with attacker-controlled size values. Attackers can exploit unchecked arithmetic operations in sparse accessor validation to cause heap buffer over-reads in cgltf_calc_index_bound(), resulting in denial of service crashes and potential memory disclosure.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer overflow or wraparound
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/jkuhlmann/cgltf/issues/287 | issue-tracking |
| https://www.vulncheck.com/advisories/jkuhlmann-cg… | third-party-advisory |
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CVE-2026-32849 (GCVE-0-2026-32849)
Vulnerability from cvelistv5 – Published: 2026-05-18 17:42 – Updated: 2026-05-18 18:58 X_Open Source
VLAI
Title
NetBSD Signed Integer Overflow in cryptodev_op via cryptodev.c
Summary
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Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://nasm.re/posts/uaf_netbsd_crypto/ | technical-descriptionexploit |
| https://github.com/NetBSD/src/commit/ec8451efc156… | patch |
| https://www.vulncheck.com/advisories/netbsd-signe… | third-party-advisory |
Impacted products
Date Public
2026-04-29 00:00
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CVE-2026-32875 (GCVE-0-2026-32875)
Vulnerability from cvelistv5 – Published: 2026-03-20 01:35 – Updated: 2026-06-30 12:07
VLAI
Title
UltraJSON has an integer overflow handling large indent leads to buffer overflow or infinite loop
Summary
UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. Versions 5.10 through 5.11.0 are vulnerable to buffer overflow or infinite loop through large indent handling. ujson.dumps() crashes the Python interpreter (segmentation fault) when the product of the indent parameter and the nested depth of the input exceeds INT32_MAX. It can also get stuck in an infinite loop if the indent is a large negative number. Both are caused by an integer overflow/underflow whilst calculating how much memory to reserve for indentation. And both can be used to achieve denial of service. To be vulnerable, a service must call ujson.dump()/ujson.dumps()/ujson.encode() whilst giving untrusted users control over the indent parameter and not restrict that indentation to reasonably small non-negative values. A service may also be vulnerable to the infinite loop if it uses a fixed negative indent. An underflow always occurs for any negative indent when the input data is at least one level nested but, for small negative indents, the underflow is usually accidentally rectified by another overflow. This issue has been fixed in version 5.12.0.
Severity
7.5 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/ultrajson/ultrajson/security/a… | x_refsource_CONFIRM |
| https://github.com/ultrajson/ultrajson/issues/700 | x_refsource_MISC |
| https://github.com/ultrajson/ultrajson/commit/486… | x_refsource_MISC |
| https://access.redhat.com/security/cve/CVE-2026-32875 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2449400 | issue-trackingx_refsource_REDHAT |
| https://security.access.redhat.com/data/csaf/v2/v… | x_sadp-csaf-vex |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| ultrajson | ultrajson |
Affected:
>= 5.1.0, < 5.12.0
|
|
| Red Hat | Red Hat OpenStack Platform 16.2 |
cpe:/a:redhat:openstack:16.2 |
|
| Red Hat | Red Hat OpenStack Platform 17.1 |
cpe:/a:redhat:openstack:17.1 |
|
| Red Hat | Red Hat OpenStack Platform 18.0 |
cpe:/a:redhat:openstack:18.0 |
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CVE-2026-32952 (GCVE-0-2026-32952)
Vulnerability from cvelistv5 – Published: 2026-04-24 01:46 – Updated: 2026-04-24 16:29
VLAI
Title
go-ntlmssp NTLM challenges can panic on malformed payloads
Summary
go-ntlmssp is a Go package that provides NTLM/Negotiate authentication over HTTP. Prior to version 0.1.1, a malicious NTLM challenge message can causes an slice out of bounds panic, which can crash any Go process using `ntlmssp.Negotiator` as an HTTP transport. Version 0.1.1 patches the issue.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/Azure/go-ntlmssp/security/advi… | x_refsource_CONFIRM |
| https://github.com/Azure/go-ntlmssp/releases/tag/v0.1.1 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Azure | go-ntlmssp |
Affected:
< 0.1.1
|
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CVE-2026-33019 (GCVE-0-2026-33019)
Vulnerability from cvelistv5 – Published: 2026-04-14 21:49 – Updated: 2026-04-15 20:02
VLAI
Title
libsixel: Integer overflow leads to Out-of-bounds Read in img2sixel
Summary
libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. Versions 1.8.7 and prior contain an integer overflow leading to an out-of-bounds heap read in the --crop option handling of img2sixel, where positive coordinates up to INT_MAX are accepted without overflow-safe bounds checking. In sixel_encoder_do_clip(), the expression clip_w + clip_x overflows to a large negative value when clip_x is INT_MAX, causing the bounds guard to be skipped entirely, and the unclamped coordinate is passed through sixel_frame_clip() to clip(), which computes a source pointer far beyond the image buffer and passes it to memmove(). An attacker supplying a specially crafted crop argument with any valid image can trigger an out-of-bounds read in the heap, resulting in a reliable crash and potential information disclosure. This issue has been fixed in version 1.8.7-r1.
Severity
7.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/saitoha/libsixel/security/advi… | x_refsource_CONFIRM |
| https://github.com/saitoha/libsixel/releases/tag/… | x_refsource_MISC |
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CVE-2026-33020 (GCVE-0-2026-33020)
Vulnerability from cvelistv5 – Published: 2026-04-14 21:53 – Updated: 2026-04-15 13:30
VLAI
Title
libsixel: Integer Overflow in write_png_to_file() leads to Heap-based Buffer Overflow
Summary
libsixel is a SIXEL encoder/decoder implementation derived from kmiya's sixel. Versions 1.8.7 and prior contain an integer overflow which leads to a heap buffer overflow via sixel_frame_convert_to_rgb888() in frame.c, where allocation size and pointer offset computations for palettised images (PAL1, PAL2, PAL4) are performed using int arithmetic before casting to size_t. For images whose pixel count exceeds INT_MAX / 4, the overflow produces an undersized heap allocation for the conversion buffer and a negative pointer offset for the normalization sub-buffer, after which sixel_helper_normalize_pixelformat() writes the full image data starting from the invalid pointer, causing massive heap corruption confirmed by ASAN. An attacker providing a specially crafted large palettised PNG can corrupt the heap of the victim process, resulting in a reliable crash and potential arbitrary code execution.
This issue has been fixed in version 1.8.7-r1.
Severity
7.1 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/saitoha/libsixel/security/advi… | x_refsource_CONFIRM |
| https://github.com/saitoha/libsixel/releases/tag/… | x_refsource_MISC |
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Mitigation
Phase: Requirements
Description:
- Ensure that all protocols are strictly defined, such that all out-of-bounds behavior can be identified simply, and require strict conformance to the protocol.
Mitigation ID: MIT-3
Phase: Requirements
Strategy: Language Selection
Description:
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- If possible, choose a language or compiler that performs automatic bounds checking.
Mitigation ID: MIT-4
Phase: Architecture and Design
Strategy: Libraries or Frameworks
Description:
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
- Use libraries or frameworks that make it easier to handle numbers without unexpected consequences.
- Examples include safe integer handling packages such as SafeInt (C++) or IntegerLib (C or C++). [REF-106]
Mitigation ID: MIT-8
Phase: Implementation
Strategy: Input Validation
Description:
- Perform input validation on any numeric input by ensuring that it is within the expected range. Enforce that the input meets both the minimum and maximum requirements for the expected range.
- Use unsigned integers where possible. This makes it easier to perform validation for integer overflows. When signed integers are required, ensure that the range check includes minimum values as well as maximum values.
Mitigation ID: MIT-36
Phase: Implementation
Description:
- Understand the programming language's underlying representation and how it interacts with numeric calculation (CWE-681). Pay close attention to byte size discrepancies, precision, signed/unsigned distinctions, truncation, conversion and casting between types, "not-a-number" calculations, and how the language handles numbers that are too large or too small for its underlying representation. [REF-7]
- Also be careful to account for 32-bit, 64-bit, and other potential differences that may affect the numeric representation.
Mitigation ID: MIT-15
Phase: Architecture and Design
Description:
- For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Mitigation ID: MIT-26
Phase: Implementation
Strategy: Compilation or Build Hardening
Description:
- Examine compiler warnings closely and eliminate problems with potential security implications, such as signed / unsigned mismatch in memory operations, or use of uninitialized variables. Even if the weakness is rarely exploitable, a single failure may lead to the compromise of the entire system.
CAPEC-92: Forced Integer Overflow
This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.