Vulnerability-Lookup

OESA-2026-1743 (CVE-2026-4359)

Vulnerability from osv_openeuler – Published: 2026-03-27 11:10 – Updated: 2026-08-06 11:10 – Source website

Summary

mongo-c-driver security update

Details

mongo-c-driver is a project that includes two libraries: libmongoc, a client library written in C for MongoDB. libbson, a library providing useful routines related to building, parsing, and iterating BSON documents.

Security Fix(es):

A compromised third party cloud server or man-in-the-middle attacker could send a malformed HTTP response and cause a crash in applications using the MongoDB C driver.(CVE-2026-4359)

Severity

2.0 (Low)


                    
                      CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

References

URL

Type

	https://www.openeuler.org/zh/security/security-bu…	ADVISORY
	https://nvd.nist.gov/vuln/detail/CVE-2026-4359	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "aarch64": [
          "libbson-1.30.6-2.oe2403sp2.aarch64.rpm",
          "libbson-devel-1.30.6-2.oe2403sp2.aarch64.rpm",
          "mongo-c-driver-1.30.6-2.oe2403sp2.aarch64.rpm",
          "mongo-c-driver-debuginfo-1.30.6-2.oe2403sp2.aarch64.rpm",
          "mongo-c-driver-debugsource-1.30.6-2.oe2403sp2.aarch64.rpm",
          "mongo-c-driver-devel-1.30.6-2.oe2403sp2.aarch64.rpm"
        ],
        "noarch": [
          "mongo-c-driver-help-1.30.6-2.oe2403sp2.noarch.rpm"
        ],
        "src": [
          "mongo-c-driver-1.30.6-2.oe2403sp2.src.rpm"
        ],
        "x86_64": [
          "libbson-1.30.6-2.oe2403sp2.x86_64.rpm",
          "libbson-devel-1.30.6-2.oe2403sp2.x86_64.rpm",
          "mongo-c-driver-1.30.6-2.oe2403sp2.x86_64.rpm",
          "mongo-c-driver-debuginfo-1.30.6-2.oe2403sp2.x86_64.rpm",
          "mongo-c-driver-debugsource-1.30.6-2.oe2403sp2.x86_64.rpm",
          "mongo-c-driver-devel-1.30.6-2.oe2403sp2.x86_64.rpm"
        ]
      },
      "package": {
        "ecosystem": "openEuler:24.03-LTS-SP2",
        "name": "mongo-c-driver",
        "purl": "pkg:rpm/openEuler/mongo-c-driver\u0026distro=openEuler-24.03-LTS-SP2"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.30.6-2.oe2403sp2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "severity": "Low"
  },
  "details": "mongo-c-driver is a project that includes two libraries: libmongoc, a client library written in C for MongoDB. libbson, a library providing useful routines related to building, parsing, and iterating BSON documents.\r\n\r\nSecurity Fix(es):\n\nA compromised third party cloud server or man-in-the-middle attacker could send a malformed HTTP response and cause a crash in applications using the MongoDB C driver.(CVE-2026-4359)",
  "id": "OESA-2026-1743",
  "modified": "2026-08-06T11:10:46Z",
  "published": "2026-03-27T11:10:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-1743"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4359"
    }
  ],
  "schema_version": "1.7.2",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ],
  "summary": "mongo-c-driver security update",
  "upstream": [
    "CVE-2026-4359"
  ]
}

CVE-2026-4359 (GCVE-0-2026-4359)

Vulnerability from cvelistv5 – Published: 2026-03-17 19:42 – Updated: 2026-03-18 20:00

Title

Heap-buffer-over-read in _mongoc_http_send via strstr on non-null-terminated buffer

Summary

A compromised third party cloud server or man-in-the-middle attacker could send a malformed HTTP response and cause a crash in applications using the MongoDB C driver.

Severity

2 (Low)


                        
                          CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

2 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-18 19:59 UTC

CWE

CWE-158 - Improper neutralization of null byte or NUL character

Assigner

mongodb mitre root

References

1 reference

URL	Tags
https://jira.mongodb.org/browse/CDRIVER-6251

Impacted products

1 product

Vendor	Product	Version
MongoDB Inc	MongoDB C Driver	Affected: 0 , < 2.2.3 (custom)

Credits

Halil Oktay (oblivionsage)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2026-4359",
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-18T19:59:57.794618Z",
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      "references": [
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.