alsa-2026:19176
Vulnerability from osv_almalinux
Published
2026-05-19 00:00
Modified
2026-05-26 12:34
Summary
Important: python3.14 security update
Details

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):

  • cpython: wsgiref.headers.Headers allows header newline injection in Python (CVE-2026-0865)
  • cpython: CPython: Logging Bypass in Legacy .pyc File Handling (CVE-2026-2297)
  • cpython: Incomplete control character validation in http.cookies (CVE-2026-3644)
  • cpython: Stack overflow parsing XML with deeply nested DTD content models (CVE-2026-4224)
  • python: Python: Command-line option injection in webbrowser.open() via crafted URLs (CVE-2026-4519)
  • python: Python: HTTP header injection via CR/LF in proxy tunnel headers (CVE-2026-1502)
  • python: Python: Arbitrary code execution or information disclosure via use-after-free in decompression modules (CVE-2026-6100)
  • python: cpython: Python: Arbitrary code execution via command injection in webbrowser.open() API (CVE-2026-4786)
  • python: Python: Information disclosure and arbitrary code execution via remote debugging with a malicious process. (CVE-2026-5713)

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.

References
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "python3.14"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.4-2.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "python3.14-debug"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.4-2.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "python3.14-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.4-2.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "python3.14-freethreading"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.4-2.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "python3.14-freethreading-debug"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.4-2.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "python3.14-freethreading-devel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.4-2.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "python3.14-freethreading-idle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.4-2.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "python3.14-freethreading-libs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.4-2.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "python3.14-freethreading-test"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.4-2.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "python3.14-freethreading-tkinter"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.4-2.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "python3.14-idle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.4-2.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "python3.14-libs"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.4-2.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "python3.14-test"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.4-2.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "AlmaLinux:9",
        "name": "python3.14-tkinter"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.14.4-2.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "details": "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.  \n\nSecurity Fix(es):  \n\n  * cpython: wsgiref.headers.Headers allows header newline injection in Python (CVE-2026-0865)\n  * cpython: CPython: Logging Bypass in Legacy .pyc File Handling (CVE-2026-2297)\n  * cpython: Incomplete control character validation in http.cookies (CVE-2026-3644)\n  * cpython: Stack overflow parsing XML with deeply nested DTD content models (CVE-2026-4224)\n  * python: Python: Command-line option injection in webbrowser.open() via crafted URLs (CVE-2026-4519)\n  * python: Python: HTTP header injection via CR/LF in proxy tunnel headers (CVE-2026-1502)\n  * python: Python: Arbitrary code execution or information disclosure via use-after-free in decompression modules (CVE-2026-6100)\n  * python: cpython: Python: Arbitrary code execution via command injection in webbrowser.open() API (CVE-2026-4786)\n  * python: Python: Information disclosure and arbitrary code execution via remote debugging with a malicious process. (CVE-2026-5713)\n\n\nFor 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.\n",
  "id": "ALSA-2026:19176",
  "modified": "2026-05-26T12:34:49Z",
  "published": "2026-05-19T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:19176"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-0865"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-1502"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-2297"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-3644"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-4224"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-4519"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-4786"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-5713"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-6100"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2431367"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2444691"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2448168"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2448181"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2449649"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2457409"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2457932"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2458049"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2458239"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/9/ALSA-2026-19176.html"
    }
  ],
  "related": [
    "CVE-2026-0865",
    "CVE-2026-2297",
    "CVE-2026-3644",
    "CVE-2026-4224",
    "CVE-2026-4519",
    "CVE-2026-1502",
    "CVE-2026-6100",
    "CVE-2026-4786",
    "CVE-2026-5713"
  ],
  "summary": "Important: python3.14 security update"
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.