cryptography is a package designed to expose cryptographic primitives and recipes to Python developers. From 45.0.0 to before 46.0.7, if a non-contiguous buffer was passed to APIs which accepted Python buffers (e.g. Hash.update()), this could lead to buffer overflows. This vulnerability is fixed in 46.0.7.

The remote Redhat Enterprise Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:24761 advisory.

    Red Hat Ansible Automation Platform provides an enterprise framework for building, deploying and managing     IT automation at scale. IT Managers can provide top-down guidelines on how automation is applied to     individual teams, while automation developers retain the freedom to write tasks that leverage existing     knowledge without the overhead. Ansible Automation Platform makes it possible for users across an     organization to share, vet, and manage automation content by means of a simple, powerful, and agentless     language.

    Security Fix(es):
    * automation-controller: Cryptography: Buffer overflow via non-contiguous buffer in API (CVE-2026-39892)
    * automation-controller: pyasn1 Vulnerable to Denial of Service via Unbounded Recursion (CVE-2026-30922)
    * automation-gateway: Axios: Server-Side Request Forgery and proxy bypass due to improper hostname     normalization (CVE-2025-62718)
    * automation-gateway: Vite: Information disclosure via WebSocket connection bypasses access control     (CVE-2026-39363)
    * automation-gateway: node-forge: Denial of Service via infinite loop in BigInteger.modInverse()     (CVE-2026-33891)
    * automation-gateway: Forge: Signature Forgery via Weak RSASSA PKCS#1 v1.5 Verification (CVE-2026-33894)
    * automation-gateway: Forge: Authentication bypass via forged Ed25519 cryptographic signatures     (CVE-2026-33895)
    * automation-gateway: Forge (node-forge): Certificate validation bypass allows unauthorized certificate     issuance (CVE-2026-33896)
    * automation-gateway: path-to-regexp: Denial of Service via crafted regular expressions (CVE-2026-4926)
    * automation-gateway: Minimatch: Denial of Service via catastrophic backtracking in glob expressions     (CVE-2026-27904)
    * automation-gateway: minimatch: Denial of Service via specially crafted glob patterns (CVE-2026-26996)
    * automation-gateway-proxy: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages     (CVE-2026-32283)
    * automation-gateway-proxy: Go: Denial of Service vulnerability in certificate chain building     (CVE-2026-32280)
    * python3.12-click: Arbitrary command execution via command injection in click.edit() (CVE-2026-7246)
    * python3.12-cryptography: Buffer overflow via non-contiguous buffer in API (CVE-2026-39892)
    * python3.12-pillow: Denial of Service via decompression bomb in FITS image processing (CVE-2026-40192)
    * receptor: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283)
    * receptor: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280)
    * receptor: Root.Chmod can follow symlinks out of the root (CVE-2026-32282)

    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.

    For details about this release, refer to the release notes 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 10 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:24762 advisory.

    Red Hat Ansible Automation Platform provides an enterprise framework for building, deploying and managing     IT automation at scale. IT Managers can provide top-down guidelines on how automation is applied to     individual teams, while automation developers retain the freedom to write tasks that leverage existing     knowledge without the overhead. Ansible Automation Platform makes it possible for users across an     organization to share, vet, and manage automation content by means of a simple, powerful, and agentless     language.

    Security Fix(es):

    * automation-controller: Cryptography: Buffer overflow via non-contiguous buffer in API (CVE-2026-39892)
    * automation-controller: pyasn1 Vulnerable to Denial of Service via Unbounded Recursion (CVE-2026-30922)
    * automation-gateway-proxy: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages     (CVE-2026-32283)
    * automation-gateway-proxy: Go: Denial of Service vulnerability in certificate chain building     (CVE-2026-32280)
    * automation-platform-ui: Vite: Information disclosure via WebSocket connection bypasses access control     (CVE-2026-39363)
    * automation-platform-ui: lodash: Arbitrary code execution via untrusted input in template imports     (CVE-2026-4800)
    * automation-platform-ui: node-forge: Denial of Service via infinite loop in BigInteger.modInverse()     (CVE-2026-33891)
    * automation-platform-ui: path-to-regexp: Denial of Service via crafted regular expressions     (CVE-2026-4926)
    * automation-platform-ui: Axios: Remote Code Execution via Prototype Pollution escalation (CVE-2026-40175)
    * python-click/python3.12-click: Pallets Click: Arbitrary command execution via command injection in     click.edit() (CVE-2026-7246)
    * python3.12-cryptography: Buffer overflow via non-contiguous buffer in API (CVE-2026-39892)
    * python3.12-pillow: Denial of Service via decompression bomb in FITS image processing (CVE-2026-40192)
    * receptor: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283)
    * receptor: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280)
    * receptor: Root.Chmod can follow symlinks out of the root (CVE-2026-32282)

    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.

    For details about this release, refer to the release notes 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 Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-aa318887d6 advisory.


    ##### **Changelog**

    ```
    * Wed Apr  8 2026 Jeremy Cline <jeremycline@microsoft.com> - 46.0.7-1
    - Update to 46.0.7
    - SECURITY ISSUE: Fixed an issue where non-contiguous buffers could be       passed to APIs that accept Python buffers, which could lead to buffer       overflow. CVE-2026-39892

    ```


Tenable has extracted the preceding description block directly from the Fedora 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 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-95233f8a79 advisory.


    ##### **Changelog**

    ```
    * Wed Apr  8 2026 Jeremy Cline <jeremycline@microsoft.com> - 46.0.7-1
    - Update to 46.0.7
    - SECURITY ISSUE: Fixed an issue where non-contiguous buffers could be       passed to APIs that accept Python buffers, which could lead to buffer       overflow. CVE-2026-39892

    ```



Tenable has extracted the preceding description block directly from the Fedora 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 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.
    From 45.0.0 to before 46.0.7, if a non-contiguous buffer was passed to APIs which accepted Python buffers     (e.g. Hash.update()), this could lead to buffer overflows. This vulnerability is fixed in 46.0.7.
    (CVE-2026-39892)

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

ID	Name	Product	Family	Severity
320178	RHEL 8 / 9 : Red Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update (Important) (RHSA-2026:24761)	Nessus	Red Hat Local Security Checks	high
320174	RHEL 10 / 9 : Red Hat Ansible Automation Platform 2.6 Product Security and Bug Fix Update (Important) (RHSA-2026:24762)	Nessus	Red Hat Local Security Checks	high
310542	Fedora 44 : python-cryptography (2026-aa318887d6)	Nessus	Fedora Local Security Checks	medium
306369	Fedora 43 : python-cryptography (2026-95233f8a79)	Nessus	Fedora Local Security Checks	medium
305732	Linux Distros Unpatched Vulnerability : CVE-2026-39892	Nessus	Misc.	medium

Detections

Analytics

CVE-2026-39892

medium

Tenable Plugins

high

high

medium

medium

medium