cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In versions 45.0.0 through 48.0.0, if an intermediate constrained CA permits the DNS name foo.example.com, and the leaf certificate has a wildcard in its DNS SAN of *.example.com, python-cryptography's verifier accepts which allows escaping outside of the permitted names. The core issue is in DNSConstraint::matches, where a wildcard pattern was treated as matching a more-specific permitted constraint even though *.example.com can expand to sibling names such as bar.example.com outside foo.example.com. This allows acceptance of an invalid certificate chain. This issue is fixed in 49.0.0.

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

  - cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In
    versions 45.0.0 through 48.0.0, if an intermediate constrained CA permits the DNS name foo.example.com,
    and the leaf certificate has a wildcard in its DNS SAN of *.example.com, python-cryptography's verifier
    accepts which allows escaping outside of the permitted names. The core issue is in DNSConstraint::matches,
    where a wildcard pattern was treated as matching a more-specific permitted constraint even though
    *.example.com can expand to sibling names such as bar.example.com outside foo.example.com. This allows
    acceptance of an invalid certificate chain. This issue is fixed in 49.0.0. (CVE-2026-69248)

The Rocky Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-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 CIQ 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 Rocky Linux 10.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-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 CIQ 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 Ubuntu 18.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8776-1 advisory.

    It was discovered that python-cryptography incorrectly accepted objects with immutable buffers when     performing certain cipher operations. This would result in corrupted output, contrary to expectations.
    This issue only affected Ubuntu 18.04 LTS. (CVE-2023-23931)

    It was discovered that python-cryptography reported the outcome of decrypting PKCS#7 enveloped data in     distinguishable ways, and with observable timing differences. A remote attacker could possibly use this     issue to recover the key used to encrypt the message contents, and obtain sensitive information. This     issue only affected Ubuntu 26.04 LTS. (CVE-2026-69247)

    Jack Lloyd discovered that python-cryptography incorrectly handled wildcard DNS names when enforcing the     name constraints of a certificate authority. A remote attacker could possibly use this issue to have an     invalid certificate chain accepted, and use names outside of the permitted ones. This issue only affected     Ubuntu 26.04 LTS. (CVE-2026-69248)

    Samuel Judson discovered that python-cryptography incorrectly handled certificate chains that contained     duplicate certificates. A remote attacker could possibly use this issue to cause python-cryptography to     use excessive resources, leading to a denial of service. This issue only affected Ubuntu 26.04 LTS.
    (CVE-2026-69249)

Tenable has extracted the preceding description block directly from the Ubuntu 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 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.

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

  - cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. In     versions 45.0.0 through 48.0.0, if an intermediate constrained CA permits the DNS name foo.example.com,     and the leaf certificate has a wildcard in its DNS SAN of *.example.com, python-cryptography's verifier     accepts which allows escaping outside of the permitted names. The core issue is in DNSConstraint::matches,     where a wildcard pattern was treated as matching a more-specific permitted constraint even though
    *.example.com can expand to sibling names such as bar.example.com outside foo.example.com. This allows     acceptance of an invalid certificate chain. This issue is fixed in 49.0.0. (CVE-2026-69248)

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

ID	Name	Product	Family	Type	Severity
459588	Echo: cryptography: security update to 49.0.0python-cryptography: security update to 1:43.0.0-3+deb13u1+e3	Tenable Cloud Security	Echo Local Security Checks	Local	high
459588	Echo: cryptography: security update to 49.0.0python-cryptography: security update to 1:43.0.0-3+deb13u1+e3	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
356055	Rocky Linux 9 [CIQ] Security Update: python3.14-cryptography / python3.14-cryptography-debuginfo / etc Multiple Vulnerabilities (crlsa-2026_64774)	Nessus	Rocky Linux Local Security Checks	Local	high
354280	Rocky Linux 10.2 [CIQ] Security Update: python3.14-cryptography / python3.14-cryptography-debuginfo / etc Multiple Vulnerabilities (crlsa-2026_64795)	Nessus	Rocky Linux Local Security Checks	Local	high
346812	Ubuntu 18.04 LTS / 26.04 LTS : python-cryptography vulnerabilities (USN-8776-1)	Nessus	Ubuntu Local Security Checks	Local	high
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
445591	SCA: security update for cryptography (GHSA-m2h6-j472-rp4c)	Tenable Cloud Security	SCA Checks	Local	high
445591	SCA: security update for cryptography (GHSA-m2h6-j472-rp4c)	Tenable Self-Hosted Container Security	SCA Checks	Local	high
331884	Linux Distros Unpatched Vulnerability : CVE-2026-69248	Nessus	Misc.	Local	high

Detections

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CVE-2026-69248

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Tenable Plugins

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