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UnratedFix available

httpd: Fix of 4 CVEs

Type: advisorySources: OSV

- CVE-2025-49630: fix denial of service attack triggered by untrusted clients causing an assertion in mod_proxy_http2 - CVE-2025-23048: fix access control bypass by trusted clients in mod_ssl configurations - CVE-2025-49812: remove support for TLS upgrade to mitigate HTTP desynchronisation attack - CVE-2024-47252: escape user-supplied data in mod_ssl to prevent untrusted SSL/TLS clients from inserting escape characters into log files

Products
httpd, httpd-devel, httpd-filesystem, httpd-manual, httpd-tools, mod_ldap, mod_proxy_html, mod_session, mod_ssl
Affected versions
Not specified
Fixed versions
1:2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15, 2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15
CVEs
CVE-2024-47252, CVE-2025-23048, CVE-2025-49630, CVE-2025-49812
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 14:08 UTC · Revision 1

Source evidence

httpd: Fix of 4 CVEs

core-osv · Original source

Published 26 Sept 2025, 19:36 UTC

- CVE-2025-49630: fix denial of service attack triggered by untrusted clients causing an assertion in mod_proxy_http2 - CVE-2025-23048: fix access control bypass by trusted clients in mod_ssl configurations - CVE-2025-49812: remove support for TLS upgrade to mitigate HTTP desynchronisation attack - CVE-2024-47252: escape user-supplied data in mod_ssl to prevent untrusted SSL/TLS clients from inserting escape characters into log files

osv:CLSA-2025-1758915354

httpd

Fixed versions: 2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15

httpd-devel

Fixed versions: 2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15

httpd-filesystem

Fixed versions: 2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15

httpd-manual

Fixed versions: 2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15

httpd-tools

Fixed versions: 2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15

mod_ldap

Fixed versions: 2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15

mod_proxy_html

Fixed versions: 1:2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15

mod_session

Fixed versions: 2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15

mod_ssl

Fixed versions: 1:2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15

Complete source record
{
  "id": "c819bac7c70a6e137d13f330cb23e0553a4f7602a244344b235a13944ca911d7",
  "url": "https://osv.dev/vulnerability/CLSA-2025-1758915354",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "httpd: Fix of 4 CVEs",
    "summary": "- CVE-2025-49630: fix denial of service attack triggered by untrusted clients causing an assertion in mod_proxy_http2 - CVE-2025-23048: fix access control bypass by trusted clients in mod_ssl configurations - CVE-2025-49812: remove support for TLS upgrade to mitigate HTTP desynchronisation attack - CVE-2024-47252: escape user-supplied data in mod_ssl to prevent untrusted SSL/TLS clients from inserting escape characters into log files",
    "evidence": "osv:CLSA-2025-1758915354",
    "products": [
      {
        "name": {
          "value": "httpd",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "httpd-devel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "httpd-filesystem",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "httpd-manual",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "httpd-tools",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15",
            "evidence": "/affected/4/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "mod_ldap",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15",
            "evidence": "/affected/5/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "mod_proxy_html",
          "evidence": "/affected/6/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15",
            "evidence": "/affected/6/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "mod_session",
          "evidence": "/affected/7/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15",
            "evidence": "/affected/7/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "mod_ssl",
          "evidence": "/affected/8/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1:2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15",
            "evidence": "/affected/8/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2025-1758915354",
      "aliases": [
        "CLSA-2025-1758915354"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15"
                }
              ]
            }
          ],
          "package": {
            "name": "httpd",
            "purl": "pkg:rpm/tuxcare/httpd?distro=centos-8.5",
            "ecosystem": "TuxCare:CentOS:8.5"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.5els/CLSA-2025-1758915354.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15"
                }
              ]
            }
          ],
          "package": {
            "name": "httpd-devel",
            "purl": "pkg:rpm/tuxcare/httpd-devel?distro=centos-8.5",
            "ecosystem": "TuxCare:CentOS:8.5"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.5els/CLSA-2025-1758915354.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15"
                }
              ]
            }
          ],
          "package": {
            "name": "httpd-filesystem",
            "purl": "pkg:rpm/tuxcare/httpd-filesystem?distro=centos-8.5",
            "ecosystem": "TuxCare:CentOS:8.5"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.5els/CLSA-2025-1758915354.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15"
                }
              ]
            }
          ],
          "package": {
            "name": "httpd-manual",
            "purl": "pkg:rpm/tuxcare/httpd-manual?distro=centos-8.5",
            "ecosystem": "TuxCare:CentOS:8.5"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.5els/CLSA-2025-1758915354.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15"
                }
              ]
            }
          ],
          "package": {
            "name": "httpd-tools",
            "purl": "pkg:rpm/tuxcare/httpd-tools?distro=centos-8.5",
            "ecosystem": "TuxCare:CentOS:8.5"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.5els/CLSA-2025-1758915354.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15"
                }
              ]
            }
          ],
          "package": {
            "name": "mod_ldap",
            "purl": "pkg:rpm/tuxcare/mod_ldap?distro=centos-8.5",
            "ecosystem": "TuxCare:CentOS:8.5"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.5els/CLSA-2025-1758915354.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15"
                }
              ]
            }
          ],
          "package": {
            "name": "mod_proxy_html",
            "purl": "pkg:rpm/tuxcare/mod_proxy_html?distro=centos-8.5",
            "ecosystem": "TuxCare:CentOS:8.5"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.5els/CLSA-2025-1758915354.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15"
                }
              ]
            }
          ],
          "package": {
            "name": "mod_session",
            "purl": "pkg:rpm/tuxcare/mod_session?distro=centos-8.5",
            "ecosystem": "TuxCare:CentOS:8.5"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.5els/CLSA-2025-1758915354.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1:2.4.37-43.module_el8.5.0+2310+48d56fe5.tuxcare.els15"
                }
              ]
            }
          ],
          "package": {
            "name": "mod_ssl",
            "purl": "pkg:rpm/tuxcare/mod_ssl?distro=centos-8.5",
            "ecosystem": "TuxCare:CentOS:8.5"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos8.5els/CLSA-2025-1758915354.json"
          }
        }
      ],
      "modified": "2026-10-21T10:48:23.963472539Z",
      "provider": "osv",
      "upstream": [
        "CVE-2024-47252",
        "CVE-2025-23048",
        "CVE-2025-49630",
        "CVE-2025-49812"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/centos8.5els/CLSA-2025-1758915354.html"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2024-47252",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2025-23048",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2025-49630",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2025-49812",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 392954,
  "published_at": "2025-09-26T19:36:01+00:00"
}