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.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-146968 advisory.

    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.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-4f2386f4ac advisory.

    ## libbson 1.30.13

    -    Fix edge case in Decimal128 parsing. **CVE-2026-106438**
    -    Enforce minimum size in bson_reserve_buffer. **CVE-2026-106437**
    -    Fix bson_writer_new when writing empty documents. **CVE-2026-106431**

    ----

    ## libmongoc  1.30.13

    *    Fix SCRAM parser. **CVE-2026-106428**


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-b1f7d859d3 advisory.

    ## libbson 1.30.13

    -    Fix edge case in Decimal128 parsing. **CVE-2026-106438**
    -    Enforce minimum size in bson_reserve_buffer. **CVE-2026-106437**
    -    Fix bson_writer_new when writing empty documents. **CVE-2026-106431**

    ----

    ## libmongoc  1.30.13

    *    Fix SCRAM parser. **CVE-2026-106428**


Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2026-106428)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
373796	Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: mongo-c-driver (UTSA-2026-146968)	Nessus	Unity Linux Local Security Checks	Local	medium
366933	Fedora 44 : mongo-c-driver (2026-4f2386f4ac)	Nessus	Fedora Local Security Checks	Local	medium
366931	Fedora 43 : mongo-c-driver (2026-b1f7d859d3)	Nessus	Fedora Local Security Checks	Local	medium
364509	Linux Distros Unpatched Vulnerability : CVE-2026-106428	Nessus	Misc.	Local	medium

Detections

Analytics

CVE-2026-106428

medium

Tenable Plugins

medium

medium

medium

medium