python-cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In versions 42.0.0 through 48.0.0, when resolving invalid certificate chains that include duplicate copies of self-signed certificates, the processing recursively invokes the same candidate, leading to an exponential blowup. Although the limitation that the chain depth cannot exceed a specified maximum depth prevents unbounded recursion and guarantees termination, an attacker-controlled certificate chain can lead the processing to easily take more than 5s to reject in testing. This amplification could form the basis for a resource exhaustion denial of service attack. The core issue arises in the recursive nature of build_chain_inner, which does not de-duplicate against previously analyzed candidates. As the correctness of validation is not affected, the integrity of a system cannot be compromised through this vector, only its availability. This issue is fixed in 49.0.0.

The remote Oracle Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2026-647950 advisory.

    [45.0.4-5]
    - Security fixes for CVE-2026-69248 and CVE-2026-69249

Tenable has extracted the preceding description block directly from the Oracle Linux 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 Oracle Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2026-647740 advisory.

    [45.0.4-6]
    - Fix gating plan

    [45.0.4-5]
    - Security fixes for CVE-2026-69248 and CVE-2026-69249

Tenable has extracted the preceding description block directly from the Oracle Linux 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 RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:64795 advisory.

    * python-cryptography: python-cryptography: Duplicate self-signed intermediates can cause exponential     path-building (CVE-2026-69249)

    * python-cryptography: python-cryptography: python-cryptography verifier accepts wildcard DNS names     allowing escape from permittedSubtrees (CVE-2026-69248)

Tenable has extracted the preceding description block directly from the RockyLinux 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 RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:64774 advisory.

    * python-cryptography: python-cryptography: Duplicate self-signed intermediates can cause exponential     path-building (CVE-2026-69249)

    * python-cryptography: python-cryptography: python-cryptography verifier accepts wildcard DNS names     allowing escape from permittedSubtrees (CVE-2026-69248)

Tenable has extracted the preceding description block directly from the RockyLinux 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 MiracleLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the AXSA:2026-1788:01 advisory.

    * python-cryptography: python-cryptography: Duplicate self-signed intermediates can cause exponential     path-building (CVE-2026-69249)
      * python-cryptography: python-cryptography: python-cryptography verifier accepts wildcard DNS names     allowing escape from permittedSubtrees (CVE-2026-69248)

Tenable has extracted the preceding description block directly from the MiracleLinux 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 AlmaLinux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2026:64774 advisory.

    * python-cryptography: python-cryptography: Duplicate self-signed intermediates can cause exponential     path-building (CVE-2026-69249)
      * python-cryptography: python-cryptography: python-cryptography verifier accepts wildcard DNS names     allowing escape from permittedSubtrees (CVE-2026-69248)

Tenable has extracted the preceding description block directly from the AlmaLinux 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 AlmaLinux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the ALSA-2026:64795 advisory.

    * python-cryptography: python-cryptography: Duplicate self-signed intermediates can cause exponential     path-building (CVE-2026-69249)
      * python-cryptography: python-cryptography: python-cryptography verifier accepts wildcard DNS names     allowing escape from permittedSubtrees (CVE-2026-69248)

Tenable has extracted the preceding description block directly from the AlmaLinux 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 Redhat Enterprise Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:64795 advisory.

    Python is an interpreted, interactive, object-oriented programming language, which includes modules,     classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to     many system calls and libraries, as well as to various windowing systems.

    Security Fix(es):

    * python-cryptography: python-cryptography: Duplicate self-signed intermediates can cause exponential     path-building (CVE-2026-69249)

    * python-cryptography: python-cryptography: python-cryptography verifier accepts wildcard DNS names     allowing escape from permittedSubtrees (CVE-2026-69248)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:64774 advisory.

    Python is an interpreted, interactive, object-oriented programming language, which includes modules,     classes, exceptions, very high level dynamic data types and dynamic typing. Python supports interfaces to     many system calls and libraries, as well as to various windowing systems.

    Security Fix(es):

    * python-cryptography: python-cryptography: Duplicate self-signed intermediates can cause exponential     path-building (CVE-2026-69249)

    * python-cryptography: python-cryptography: python-cryptography verifier accepts wildcard DNS names     allowing escape from permittedSubtrees (CVE-2026-69248)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21685-1 advisory.

    - CVE-2026-69247: PKCS#7 `EnvelopedData` decryption exposes a Bleichenbacher oracle through     distinguishable errors and       timing (bsc#1273551).
    - CVE-2026-69248: verifier accepts wildcard DNS names allowing escape from `permittedSubtrees`     (bsc#1273549).
    - CVE-2026-69249: duplicate self-signed intermediates can cause exponential path-building (bsc#1273516).

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

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

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - python-cryptography is a package designed to expose cryptographic primitives and recipes to Python
    developers. In versions 42.0.0 through 48.0.0, when resolving invalid certificate chains that include
    duplicate copies of self-signed certificates, the processing recursively invokes the same candidate,
    leading to an exponential blowup. Although the limitation that the chain depth cannot exceed a specified
    maximum depth prevents unbounded recursion and guarantees termination, an attacker-controlled certificate
    chain can lead the processing to easily take more than 5s to reject in testing. This amplification could
    form the basis for a resource exhaustion denial of service attack. The core issue arises in the recursive
    nature of build_chain_inner, which does not de-duplicate against previously analyzed candidates. As the
    correctness of validation is not affected, the integrity of a system cannot be compromised through this
    vector, only its availability. This issue is fixed in 49.0.0. (CVE-2026-69249)

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

  - python-cryptography is a package designed to expose cryptographic primitives and recipes to Python     developers. In versions 42.0.0 through 48.0.0, when resolving invalid certificate chains that include     duplicate copies of self-signed certificates, the processing recursively invokes the same candidate,     leading to an exponential blowup. Although the limitation that the chain depth cannot exceed a specified     maximum depth prevents unbounded recursion and guarantees termination, an attacker-controlled certificate     chain can lead the processing to easily take more than 5s to reject in testing. This amplification could     form the basis for a resource exhaustion denial of service attack. The core issue arises in the recursive     nature of build_chain_inner, which does not de-duplicate against previously analyzed candidates. As the     correctness of validation is not affected, the integrity of a system cannot be compromised through this     vector, only its availability. This issue is fixed in 49.0.0. (CVE-2026-69249)

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

ID	Name	Product	Family	Type	Severity
344330	Oracle Linux 10 : ELSA-2026-64795-0: / python3.14-cryptography (ELSA-2026-647950)	Nessus	Oracle Linux Local Security Checks	Local	high
344281	Oracle Linux 9 : ELSA-2026-64774-0: / python3.14-cryptography (ELSA-2026-647740)	Nessus	Oracle Linux Local Security Checks	Local	high
344064	RockyLinux 10 : python3.14-cryptography (RLSA-2026:64795)	Nessus	Rocky Linux Local Security Checks	Local	high
344051	RockyLinux 9 : python3.14-cryptography (RLSA-2026:64774)	Nessus	Rocky Linux Local Security Checks	Local	high
343928	MiracleLinux 9 : python3.14-cryptography-45.0.4-4.el9_8.6 (AXSA:2026-1788:01)	Nessus	Miracle Linux Local Security Checks	Local	high
343826	AlmaLinux 9 : python3.14-cryptography (ALSA-2026:64774)	Nessus	Alma Linux Local Security Checks	Local	high
343821	AlmaLinux 10 : python3.14-cryptography (ALSA-2026:64795)	Nessus	Alma Linux Local Security Checks	Local	high
343801	RHEL 10 : python3.14-cryptography (RHSA-2026:64795)	Nessus	Red Hat Local Security Checks	Local	high
343759	RHEL 9 : python3.14-cryptography (RHSA-2026:64774)	Nessus	Red Hat Local Security Checks	Local	high
342112	openSUSE 16 Security Update : python-cryptography (openSUSE-SU-2026:21685-1)	Nessus	SuSE Local Security Checks	Local	high
445600	SCA: security update for cryptography (GHSA-jwv3-5hgf-82ww)	Tenable Cloud Security	SCA Checks	Local	high
445600	SCA: security update for cryptography (GHSA-jwv3-5hgf-82ww)	Tenable Self-Hosted Container Security	SCA Checks	Local	high
331890	Linux Distros Unpatched Vulnerability : CVE-2026-69249	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-69249

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Tenable Plugins

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