CWE-1285
Improper Validation of Specified Index, Position, or Offset in Input
The product receives input that is expected to specify an index, position, or offset into an indexable resource such as a buffer or file, but it does not validate or incorrectly validates that the specified index/position/offset has the required properties.
CVE-2026-20413 (GCVE-0-2026-20413)
Vulnerability from cvelistv5 – Published: 2026-02-02 08:15 – Updated: 2026-03-30 13:03
VLAI
Summary
In imgsys, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10362725; Issue ID: MSV-5694.
Severity
6.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-1285 - Specified Index, Position, or Offset
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MediaTek, Inc. | MediaTek chipset |
Affected:
MT6899
Affected: MT6991 Affected: MT8678 Affected: MT8793 |
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CVE-2026-20440 (GCVE-0-2026-20440)
Vulnerability from cvelistv5 – Published: 2026-03-02 08:39 – Updated: 2026-03-30 13:05
VLAI
Summary
In MAE, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS10431968; Issue ID: MSV-5824.
Severity
6.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-1285 - Specified Index, Position, or Offset
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MediaTek, Inc. | MediaTek chipset |
Affected:
MT2718
Affected: MT6899 Affected: MT6991 Affected: MT8678 Affected: MT8793 |
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CVE-2026-33557 (GCVE-0-2026-33557)
Vulnerability from cvelistv5 – Published: 2026-04-20 13:28 – Updated: 2026-04-20 14:30
VLAI
Title
Apache Kafka: Missing JWT token validation in OAUTHBEARER authentication
Summary
A possible security vulnerability has been identified in Apache Kafka.
By default, the broker property `sasl.oauthbearer.jwt.validator.class` is set to `org.apache.kafka.common.security.oauthbearer.DefaultJwtValidator`. It accepts any JWT token without validating its signature, issuer, or audience. An attacker can generate a JWT token from any issuer with the `preferred_username` set to any user, and the broker will accept it.
We advise the Kafka users using kafka v4.1.0 or v4.1.1 to set the config `sasl.oauthbearer.jwt.validator.class` to `org.apache.kafka.common.security.oauthbearer.BrokerJwtValidator` explicitly to avoid this vulnerability. Since Kafka v4.1.2 and v4.2.0 and later, the issue is fixed and will correctly validate the JWT token.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1285 - Improper Validation of Specified Index, Position, or Offset in Input
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://kafka.apache.org/cve-list | vendor-advisory |
| https://lists.apache.org/thread/v57o00hm6yszdpdnv… | mailing-list |
| http://www.openwall.com/lists/oss-security/2026/04/17/2 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Kafka |
Affected:
4.1.0 , ≤ 4.1.1
(semver)
|
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CVE-2026-45352 (GCVE-0-2026-45352)
Vulnerability from cvelistv5 – Published: 2026-05-29 19:14 – Updated: 2026-06-02 01:52
VLAI
Title
cpp-httplib DoS: Negative chunk-size in chunked Transfer-Encoding
Summary
cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.43.4, negative chunk-size in chunked Transfer-Encoding causes unbounded memory allocation and process crash. The ChunkedDecoder::read_payload function in cpp-httplib (httplib.h) parses the chunk-size field of HTTP chunked transfer encoding using std::strtoul(). Per the C standard (§7.22.1.4), strtoul silently accepts a leading minus sign, performing unsigned wrap-around: strtoul("-2", …, 16) returns ULONG_MAX − 1 (0xFFFFFFFFFFFFFFFE). The library's only guard (line 12833) rejects ULONG_MAX (the result of "-1"), but any other negative value such as "-2" passes validation. The resulting near-maximum value is stored in chunk_remaining and controls how many bytes the server's read loop consumes from the network. This vulnerability is fixed in 0.43.4.
Severity
5.3 (Medium)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/yhirose/cpp-httplib/security/a… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| yhirose | cpp-httplib |
Affected:
< 0.43.4
|
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CVE-2026-8036 (GCVE-0-2026-8036)
Vulnerability from cvelistv5 – Published: 2026-06-02 17:26 – Updated: 2026-06-04 03:55
VLAI
Title
Local privilege escalation in NI-PAL
Summary
Improper input validation in NI-PAL may allow a local authenticated user to access arbitrary system memory, potentially leading to privilege escalation. This vulnerability affects NI-PAL 26.3.0 and prior versions on Windows and Linux.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-1285 - Improper validation of specified index, position, or offset in input
Assigner
References
1 reference
Credits
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CVE-2026-9100 (GCVE-0-2026-9100)
Vulnerability from cvelistv5 – Published: 2026-05-20 15:55 – Updated: 2026-05-20 17:20
VLAI
Title
Heap memory out of bounds read and crash in C Driver legacy GridFS file reader
Summary
The MongoDB C Driver's legacy GridFS API accepts malformed file metadata from the database without adequate validation. Crafted documents in a GridFS collection may cause any application that reads those files via the legacy API to either crash (via a division-by-zero) or silently leak process memory contents (via an out-of-bounds read).
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-1285 - Improper Validation of Specified Index, Position, or Offset in Input
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://jira.mongodb.org/browse/CDRIVER-6281 | issue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB, Inc. | C Driver |
Affected:
1.0 , < 1.30.8
(custom)
Affected: 2.0 , < 2.2.4 (custom) |
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Mitigation ID: MIT-5
Phase: Implementation
Strategy: Input Validation
Description:
- Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
- When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
- Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
No CAPEC attack patterns related to this CWE.