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697 vulnerabilities by mongodb
CVE-2026-87110 (GCVE-0-2026-87110)
Vulnerability from nvd – Published: 2026-10-09 05:52 – Updated: 2026-10-09 05:52
VLAI
EPSS
VEX
Title
Ops Manager Uncontrolled Resource Consumption in Monitoring Endpoints
Summary
An unauthenticated user with network access to the Ops Manager web port can repeatedly request monitoring endpoints that perform costly work without rate limiting. This can temporarily slow other traffic served by the same process while requests continue.
Severity
5.3 (Medium)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | Ops Manager |
Affected:
7.0.0 , ≤ 7.0.23
(semver)
Affected: 8.0.0 , < 8.0.27 (semver) |
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CVE-2026-87109 (GCVE-0-2026-87109)
Vulnerability from nvd – Published: 2026-10-09 05:56 – Updated: 2026-10-09 18:04
VLAI
EPSS
VEX
Title
Ops Manager Sensitive MFA Enrollment Information Exposure in User Listings
Summary
An authenticated Ops Manager organization member can retrieve another member's pending authenticator enrollment seed through user-listing endpoints while that member's enrollment is unconfirmed. This results in disclosure of secret authentication material to another member of the same organization or project.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 18:04 UTC
CWE
- CWE-201 - Exposure of Sensitive Information Through Sent Data
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | Ops Manager |
Affected:
7.0.0 , ≤ 7.0.23
(semver)
Affected: 8.0.0 , < 8.0.27 (semver) |
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CVE-2026-87108 (GCVE-0-2026-87108)
Vulnerability from nvd – Published: 2026-10-09 05:54 – Updated: 2026-10-09 16:47
VLAI
EPSS
VEX
Title
Ops Manager Improper Authorization in Daily Host Monitoring Retrieval
Summary
An authenticated Ops Manager user with a read-only project role can retrieve a daily host monitoring record associated with a different project when they possess the required record identifier. Insufficient ownership validation can expose deployment metadata, including host and configuration details.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 16:15 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | Ops Manager |
Affected:
7.0.0 , ≤ 7.0.23
(semver)
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CVE-2026-106435 (GCVE-0-2026-106435)
Vulnerability from nvd – Published: 2026-10-08 20:12 – Updated: 2026-10-09 11:49
VLAI
EPSS
VEX
Title
Application denial of service via out-of-bounds read in BSON Regex decoding in MongoDB Python Driver
Summary
The MongoDB Python Driver's binary accelerator can read outside a buffer when an application decodes malformed BSON containing a truncated regular-expression element without a trailing NUL byte. An actor who can supply BSON to the documented decode or decode_all API can cause the application process to terminate when the C extension is loaded. The driver's normal database wire-protocol path does not reach this code.
Severity
5.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 11:49 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | Python Driver |
Affected:
0.10.3 , ≤ 4.18.2
(semver)
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CVE-2026-106436 (GCVE-0-2026-106436)
Vulnerability from nvd – Published: 2026-10-08 19:03 – Updated: 2026-10-08 19:52
VLAI
EPSS
VEX
Title
Application denial of service and data truncation via unchecked BSON append failures in MongoDB PHP Driver
Summary
The BSON encoder in the MongoDB PHP Driver does not check some return values after a document exceeds libbson's size limit. This can leave the encoder in an invalid state. An unauthenticated actor who can cause an affected application to encode an unusually large data structure can terminate the PHP worker or cause the resulting document to omit fields. No MongoDB server connection or database authentication is required.
Severity
4.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:51 UTC
CWE
- CWE-252 - Unchecked Return Value
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | PHP Driver |
Affected:
1.3.0 , < 1.21.11
(semver)
Affected: 2.0.0 , < 2.1.11 (semver) Affected: 2.2.0 , < 2.5.4 (semver) |
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CVE-2026-106432 (GCVE-0-2026-106432)
Vulnerability from nvd – Published: 2026-10-08 19:02 – Updated: 2026-10-08 19:51
VLAI
EPSS
VEX
Title
Heap buffer overflow via 32-bit string-length truncation in MongoDB PHP Driver
Summary
The BSON encoder in the MongoDB PHP Driver converts a string length to a 32-bit value without validation. When an affected application encodes a string near 4 GiB, the allocation size can wrap while the copy operation uses the original length. The resulting heap buffer overflow can corrupt process memory or terminate the PHP process. Reaching this issue requires a non-default runtime configuration that permits multi-gigabyte values. No MongoDB server interaction is required.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:51 UTC
CWE
- CWE-681 - Incorrect Conversion between Numeric Types
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | PHP Driver |
Affected:
1.16.0 , < 1.21.11
(semver)
Affected: 2.0.0 , < 2.1.11 (semver) Affected: 2.2.0 , < 2.5.4 (semver) |
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CVE-2026-107325 (GCVE-0-2026-107325)
Vulnerability from nvd – Published: 2026-10-08 19:01 – Updated: 2026-10-08 19:32
VLAI
EPSS
VEX
Title
Application denial of service via missing BSON array length validation in MongoDB Go Driver
Summary
Improper validation of a BSON array length in the MongoDB Go Driver can cause an out-of-bounds index and runtime panic when an application calls bson.RawArray.Validate or bsoncore.Array.Validate on a malformed four-byte array. An unauthenticated actor who can supply raw BSON array data to an affected application may terminate an unprotected application process, causing a denial of service. No confidentiality or integrity impact has been identified.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:32 UTC
CWE
- CWE-129 - Improper Validation of Array Index
Assigner
References
1 reference
Impacted products
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CVE-2026-107324 (GCVE-0-2026-107324)
Vulnerability from nvd – Published: 2026-10-08 18:58 – Updated: 2026-10-08 19:31
VLAI
EPSS
VEX
Title
Application denial of service via integer overflow in BSON value-length validation in MongoDB Go Driver
Summary
An integer overflow in BSON value-length handling in the MongoDB Go Driver can cause a runtime panic when an application validates or accesses a malformed BSON document. An unauthenticated actor who can supply BSON bytes to an affected application may terminate an unprotected application process, causing a denial of service. The driver's server-monitoring path contains panic recovery and is limited to server-selection failure.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:31 UTC
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
1 reference
Impacted products
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CVE-2026-106438 (GCVE-0-2026-106438)
Vulnerability from nvd – Published: 2026-10-08 18:44 – Updated: 2026-10-08 19:21
VLAI
EPSS
VEX
Title
Silent Decimal128 value corruption via incorrect exactness check in MongoDB C Driver
Summary
An incorrect calculation in Decimal128 string parsing in the MongoDB C Driver can accept certain over-precision inputs containing leading zeros instead of rejecting them. This produces a value different from the supplied text. An actor who can provide a decimal string to an embedding application, including through Extended JSON parsing, can cause the application to store or use an incorrect numeric value.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:20 UTC
CWE
- CWE-682 - Incorrect Calculation
Assigner
References
1 reference
Impacted products
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CVE-2026-106437 (GCVE-0-2026-106437)
Vulnerability from nvd – Published: 2026-10-08 18:42 – Updated: 2026-10-08 19:20
VLAI
EPSS
VEX
Title
Out-of-bounds read and write via undersized BSON buffer reservation in MongoDB C Driver
Summary
The BSON buffer-reservation API in the MongoDB C Driver can record a length smaller than the five-byte BSON minimum. Later append or comparison operations can underflow unsigned length calculations and read or write outside the document buffer. An actor who can influence the length supplied by an embedding application can cause the application to terminate or read or corrupt adjacent process memory. Reaching this issue requires the application to pass an undersized value to bson_reserve_buffer and then perform an affected operation.
Severity
6.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:20 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
1 reference
Impacted products
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CVE-2026-106434 (GCVE-0-2026-106434)
Vulnerability from nvd – Published: 2026-10-08 18:56 – Updated: 2026-10-08 19:30
VLAI
EPSS
VEX
Title
Unrecognized payload acceptance in explicit decryption in MongoDB libmongocrypt
Summary
The explicit decryption component of MongoDB libmongocrypt can return an unrecognized encrypted payload unchanged instead of returning a decryption error. An actor who can modify stored encrypted fields, such as a database writer, server, or network intermediary, can cause an affected application to process the supplied bytes as decrypted plaintext.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:30 UTC
CWE
- CWE-354 - Improper Validation of Integrity Check Value
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | libmongocrypt |
Affected:
1.5.0 , < 1.20.5
(semver)
|
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CVE-2026-106433 (GCVE-0-2026-106433)
Vulnerability from nvd – Published: 2026-10-08 18:55 – Updated: 2026-10-08 19:30
VLAI
EPSS
VEX
Title
Heap corruption via duplicate masterKey fields in MongoDB libmongocrypt
Summary
Improper state management in MongoDB libmongocrypt can cause provider-specific data to be treated as an incompatible type when cleaning up a key document containing duplicate masterKey fields. An authenticated actor who can modify key vault documents, or a server that returns such a key document, can cause invalid memory access and invalid frees in the client process. This can terminate the application or corrupt process memory.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:30 UTC
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | libmongocrypt |
Affected:
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(semver)
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CVE-2026-106431 (GCVE-0-2026-106431)
Vulnerability from nvd – Published: 2026-10-08 18:40 – Updated: 2026-10-08 19:19
VLAI
EPSS
VEX
Title
One-byte heap buffer overflow in BSON bulk document writer in MongoDB C Driver
Summary
An off-by-one error in the BSON bulk document writer in the MongoDB C Driver can write one zero byte immediately past a heap allocation when a document ends at a specific buffer boundary. An actor who can influence the size of documents serialized by an embedding application can corrupt adjacent process memory or terminate the process. Reaching this issue requires the application to use the BSON bulk-writer API and produce a precise cumulative document size.
Severity
5.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:19 UTC
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
1 reference
Impacted products
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CVE-2026-106430 (GCVE-0-2026-106430)
Vulnerability from nvd – Published: 2026-10-08 18:45 – Updated: 2026-10-08 19:25
VLAI
EPSS
VEX
Title
Query and rename target confusion via embedded NUL truncation in MongoDB C++ Driver
Summary
The MongoDB C++ Driver discards content after an embedded NUL byte in certain field and collection names accepted by the collection API. This can cause the driver and the calling application to interpret the same name differently. An authenticated actor who can influence a name passed by an affected application can cause the application to read distinct values from an unintended field or rename an unintended collection. These operations use the application's existing database credentials.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:24 UTC
CWE
- CWE-436 - Interpretation Conflict
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | C++ Driver |
Affected:
3.0.0 , < 4.6.1
(semver)
|
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CVE-2026-106429 (GCVE-0-2026-106429)
Vulnerability from nvd – Published: 2026-10-08 18:54 – Updated: 2026-10-08 19:30
VLAI
EPSS
VEX
Title
Application denial of service via malformed KMS endpoint in MongoDB libmongocrypt
Summary
An integer underflow in the KMS endpoint-parsing logic of MongoDB libmongocrypt can cause an allocation failure that terminates the application process. This can occur when an authenticated user modifies a key document in the key vault collection, or when an application accepts a KMS endpoint containing a colon after its path or query during key creation. The issue does not access memory outside its allocated bounds.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:29 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | libmongocrypt |
Affected:
1.1.0 , < 1.20.5
(semver)
|
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CVE-2026-106428 (GCVE-0-2026-106428)
Vulnerability from nvd – Published: 2026-10-08 18:35 – Updated: 2026-10-08 19:17
VLAI
EPSS
VEX
Title
Out-of-bounds read in SCRAM response parsing in MongoDB C Driver
Summary
An out-of-bounds read in SCRAM authentication response parsing in the MongoDB C Driver can read one byte beyond a fixed-size buffer when processing a malformed server-final message. A server or network intermediary able to provide this message before server-signature verification can cause the application using the driver to terminate. The extra byte is not returned through the protocol.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:17 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
Impacted products
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CVE-2026-87109 (GCVE-0-2026-87109)
Vulnerability from cvelistv5 – Published: 2026-10-09 05:56 – Updated: 2026-10-09 18:04
VLAI
EPSS
VEX
Title
Ops Manager Sensitive MFA Enrollment Information Exposure in User Listings
Summary
An authenticated Ops Manager organization member can retrieve another member's pending authenticator enrollment seed through user-listing endpoints while that member's enrollment is unconfirmed. This results in disclosure of secret authentication material to another member of the same organization or project.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 18:04 UTC
CWE
- CWE-201 - Exposure of Sensitive Information Through Sent Data
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | Ops Manager |
Affected:
7.0.0 , ≤ 7.0.23
(semver)
Affected: 8.0.0 , < 8.0.27 (semver) |
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CVE-2026-87108 (GCVE-0-2026-87108)
Vulnerability from cvelistv5 – Published: 2026-10-09 05:54 – Updated: 2026-10-09 16:47
VLAI
EPSS
VEX
Title
Ops Manager Improper Authorization in Daily Host Monitoring Retrieval
Summary
An authenticated Ops Manager user with a read-only project role can retrieve a daily host monitoring record associated with a different project when they possess the required record identifier. Insufficient ownership validation can expose deployment metadata, including host and configuration details.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 16:15 UTC
CWE
- CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | Ops Manager |
Affected:
7.0.0 , ≤ 7.0.23
(semver)
Affected: 8.0.0 , < 8.0.27 (semver) |
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CVE-2026-87110 (GCVE-0-2026-87110)
Vulnerability from cvelistv5 – Published: 2026-10-09 05:52 – Updated: 2026-10-09 05:52
VLAI
EPSS
VEX
Title
Ops Manager Uncontrolled Resource Consumption in Monitoring Endpoints
Summary
An unauthenticated user with network access to the Ops Manager web port can repeatedly request monitoring endpoints that perform costly work without rate limiting. This can temporarily slow other traffic served by the same process while requests continue.
Severity
5.3 (Medium)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
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CVE-2026-106435 (GCVE-0-2026-106435)
Vulnerability from cvelistv5 – Published: 2026-10-08 20:12 – Updated: 2026-10-09 11:49
VLAI
EPSS
VEX
Title
Application denial of service via out-of-bounds read in BSON Regex decoding in MongoDB Python Driver
Summary
The MongoDB Python Driver's binary accelerator can read outside a buffer when an application decodes malformed BSON containing a truncated regular-expression element without a trailing NUL byte. An actor who can supply BSON to the documented decode or decode_all API can cause the application process to terminate when the C extension is loaded. The driver's normal database wire-protocol path does not reach this code.
Severity
5.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-09 11:49 UTC
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | Python Driver |
Affected:
0.10.3 , ≤ 4.18.2
(semver)
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CVE-2026-106436 (GCVE-0-2026-106436)
Vulnerability from cvelistv5 – Published: 2026-10-08 19:03 – Updated: 2026-10-08 19:52
VLAI
EPSS
VEX
Title
Application denial of service and data truncation via unchecked BSON append failures in MongoDB PHP Driver
Summary
The BSON encoder in the MongoDB PHP Driver does not check some return values after a document exceeds libbson's size limit. This can leave the encoder in an invalid state. An unauthenticated actor who can cause an affected application to encode an unusually large data structure can terminate the PHP worker or cause the resulting document to omit fields. No MongoDB server connection or database authentication is required.
Severity
4.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:51 UTC
CWE
- CWE-252 - Unchecked Return Value
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | PHP Driver |
Affected:
1.3.0 , < 1.21.11
(semver)
Affected: 2.0.0 , < 2.1.11 (semver) Affected: 2.2.0 , < 2.5.4 (semver) |
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CVE-2026-106432 (GCVE-0-2026-106432)
Vulnerability from cvelistv5 – Published: 2026-10-08 19:02 – Updated: 2026-10-08 19:51
VLAI
EPSS
VEX
Title
Heap buffer overflow via 32-bit string-length truncation in MongoDB PHP Driver
Summary
The BSON encoder in the MongoDB PHP Driver converts a string length to a 32-bit value without validation. When an affected application encodes a string near 4 GiB, the allocation size can wrap while the copy operation uses the original length. The resulting heap buffer overflow can corrupt process memory or terminate the PHP process. Reaching this issue requires a non-default runtime configuration that permits multi-gigabyte values. No MongoDB server interaction is required.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:51 UTC
CWE
- CWE-681 - Incorrect Conversion between Numeric Types
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | PHP Driver |
Affected:
1.16.0 , < 1.21.11
(semver)
Affected: 2.0.0 , < 2.1.11 (semver) Affected: 2.2.0 , < 2.5.4 (semver) |
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CVE-2026-107325 (GCVE-0-2026-107325)
Vulnerability from cvelistv5 – Published: 2026-10-08 19:01 – Updated: 2026-10-08 19:32
VLAI
EPSS
VEX
Title
Application denial of service via missing BSON array length validation in MongoDB Go Driver
Summary
Improper validation of a BSON array length in the MongoDB Go Driver can cause an out-of-bounds index and runtime panic when an application calls bson.RawArray.Validate or bsoncore.Array.Validate on a malformed four-byte array. An unauthenticated actor who can supply raw BSON array data to an affected application may terminate an unprotected application process, causing a denial of service. No confidentiality or integrity impact has been identified.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:32 UTC
CWE
- CWE-129 - Improper Validation of Array Index
Assigner
References
1 reference
Impacted products
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CVE-2026-107324 (GCVE-0-2026-107324)
Vulnerability from cvelistv5 – Published: 2026-10-08 18:58 – Updated: 2026-10-08 19:31
VLAI
EPSS
VEX
Title
Application denial of service via integer overflow in BSON value-length validation in MongoDB Go Driver
Summary
An integer overflow in BSON value-length handling in the MongoDB Go Driver can cause a runtime panic when an application validates or accesses a malformed BSON document. An unauthenticated actor who can supply BSON bytes to an affected application may terminate an unprotected application process, causing a denial of service. The driver's server-monitoring path contains panic recovery and is limited to server-selection failure.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:31 UTC
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
1 reference
Impacted products
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CVE-2026-106434 (GCVE-0-2026-106434)
Vulnerability from cvelistv5 – Published: 2026-10-08 18:56 – Updated: 2026-10-08 19:30
VLAI
EPSS
VEX
Title
Unrecognized payload acceptance in explicit decryption in MongoDB libmongocrypt
Summary
The explicit decryption component of MongoDB libmongocrypt can return an unrecognized encrypted payload unchanged instead of returning a decryption error. An actor who can modify stored encrypted fields, such as a database writer, server, or network intermediary, can cause an affected application to process the supplied bytes as decrypted plaintext.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:30 UTC
CWE
- CWE-354 - Improper Validation of Integrity Check Value
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | libmongocrypt |
Affected:
1.5.0 , < 1.20.5
(semver)
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CVE-2026-106433 (GCVE-0-2026-106433)
Vulnerability from cvelistv5 – Published: 2026-10-08 18:55 – Updated: 2026-10-08 19:30
VLAI
EPSS
VEX
Title
Heap corruption via duplicate masterKey fields in MongoDB libmongocrypt
Summary
Improper state management in MongoDB libmongocrypt can cause provider-specific data to be treated as an incompatible type when cleaning up a key document containing duplicate masterKey fields. An authenticated actor who can modify key vault documents, or a server that returns such a key document, can cause invalid memory access and invalid frees in the client process. This can terminate the application or corrupt process memory.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:30 UTC
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | libmongocrypt |
Affected:
1.1.0 , < 1.20.5
(semver)
|
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CVE-2026-106429 (GCVE-0-2026-106429)
Vulnerability from cvelistv5 – Published: 2026-10-08 18:54 – Updated: 2026-10-08 19:30
VLAI
EPSS
VEX
Title
Application denial of service via malformed KMS endpoint in MongoDB libmongocrypt
Summary
An integer underflow in the KMS endpoint-parsing logic of MongoDB libmongocrypt can cause an allocation failure that terminates the application process. This can occur when an authenticated user modifies a key document in the key vault collection, or when an application accepts a KMS endpoint containing a colon after its path or query during key creation. The issue does not access memory outside its allocated bounds.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:29 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | libmongocrypt |
Affected:
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(semver)
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CVE-2026-106430 (GCVE-0-2026-106430)
Vulnerability from cvelistv5 – Published: 2026-10-08 18:45 – Updated: 2026-10-08 19:25
VLAI
EPSS
VEX
Title
Query and rename target confusion via embedded NUL truncation in MongoDB C++ Driver
Summary
The MongoDB C++ Driver discards content after an embedded NUL byte in certain field and collection names accepted by the collection API. This can cause the driver and the calling application to interpret the same name differently. An authenticated actor who can influence a name passed by an affected application can cause the application to read distinct values from an unintended field or rename an unintended collection. These operations use the application's existing database credentials.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:24 UTC
CWE
- CWE-436 - Interpretation Conflict
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MongoDB | C++ Driver |
Affected:
3.0.0 , < 4.6.1
(semver)
|
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CVE-2026-106438 (GCVE-0-2026-106438)
Vulnerability from cvelistv5 – Published: 2026-10-08 18:44 – Updated: 2026-10-08 19:21
VLAI
EPSS
VEX
Title
Silent Decimal128 value corruption via incorrect exactness check in MongoDB C Driver
Summary
An incorrect calculation in Decimal128 string parsing in the MongoDB C Driver can accept certain over-precision inputs containing leading zeros instead of rejecting them. This produces a value different from the supplied text. An actor who can provide a decimal string to an embedding application, including through Extended JSON parsing, can cause the application to store or use an incorrect numeric value.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:20 UTC
CWE
- CWE-682 - Incorrect Calculation
Assigner
References
1 reference
Impacted products
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CVE-2026-106437 (GCVE-0-2026-106437)
Vulnerability from cvelistv5 – Published: 2026-10-08 18:42 – Updated: 2026-10-08 19:20
VLAI
EPSS
VEX
Title
Out-of-bounds read and write via undersized BSON buffer reservation in MongoDB C Driver
Summary
The BSON buffer-reservation API in the MongoDB C Driver can record a length smaller than the five-byte BSON minimum. Later append or comparison operations can underflow unsigned length calculations and read or write outside the document buffer. An actor who can influence the length supplied by an embedding application can cause the application to terminate or read or corrupt adjacent process memory. Reaching this issue requires the application to pass an undersized value to bson_reserve_buffer and then perform an affected operation.
Severity
6.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-08 19:20 UTC
CWE
- CWE-191 - Integer Underflow (Wrap or Wraparound)
Assigner
References
1 reference
Impacted products
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