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UnratedFix available

exim: Fix of 2 CVEs

Type: advisorySources: OSV

- CVE-2026-94054: fix out-of-bounds read in Proxy Protocol v1 header parsing - CVE-2026-94057: avoid more SMTP smuggling attack types by honouring strict CRLF mode when swallowing input after a data-phase rejection

Products
exim, exim-greylist, exim-mon, exim-mysql, exim-pgsql
Affected versions
Not specified
Fixed versions
4.99.5-1.el9_2.tuxcare.els2
CVEs
CVE-2026-94054, CVE-2026-94057
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 10:46 UTC · Revision 1

Source evidence

exim: Fix of 2 CVEs

core-osv · Original source

Published 24 Sept 2026, 13:00 UTC

- CVE-2026-94054: fix out-of-bounds read in Proxy Protocol v1 header parsing - CVE-2026-94057: avoid more SMTP smuggling attack types by honouring strict CRLF mode when swallowing input after a data-phase rejection

osv:CLSA-2026-1790254810

exim

Fixed versions: 4.99.5-1.el9_2.tuxcare.els2

exim-greylist

Fixed versions: 4.99.5-1.el9_2.tuxcare.els2

exim-mon

Fixed versions: 4.99.5-1.el9_2.tuxcare.els2

exim-mysql

Fixed versions: 4.99.5-1.el9_2.tuxcare.els2

exim-pgsql

Fixed versions: 4.99.5-1.el9_2.tuxcare.els2

Complete source record
{
  "id": "6d2a0ed0d9dffd2d8ac6156caabfc6c5f77e4fd7c2dd38b7c2ad646b7800f4c8",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1790254810",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "exim: Fix of 2 CVEs",
    "summary": "- CVE-2026-94054: fix out-of-bounds read in Proxy Protocol v1 header parsing - CVE-2026-94057: avoid more SMTP smuggling attack types by honouring strict CRLF mode when swallowing input after a data-phase rejection",
    "evidence": "osv:CLSA-2026-1790254810",
    "products": [
      {
        "name": {
          "value": "exim",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.99.5-1.el9_2.tuxcare.els2",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "exim-greylist",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.99.5-1.el9_2.tuxcare.els2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "exim-mon",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.99.5-1.el9_2.tuxcare.els2",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "exim-mysql",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.99.5-1.el9_2.tuxcare.els2",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": []
      },
      {
        "name": {
          "value": "exim-pgsql",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.99.5-1.el9_2.tuxcare.els2",
            "evidence": "/affected/4/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1790254810",
      "aliases": [
        "CLSA-2026-1790254810"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4.99.5-1.el9_2.tuxcare.els2"
                }
              ]
            }
          ],
          "package": {
            "name": "exim",
            "purl": "pkg:rpm/tuxcare/exim?distro=almalinux-9.2",
            "ecosystem": "TuxCare:AlmaLinux:9.2"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1790254810.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4.99.5-1.el9_2.tuxcare.els2"
                }
              ]
            }
          ],
          "package": {
            "name": "exim-greylist",
            "purl": "pkg:rpm/tuxcare/exim-greylist?distro=almalinux-9.2",
            "ecosystem": "TuxCare:AlmaLinux:9.2"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1790254810.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4.99.5-1.el9_2.tuxcare.els2"
                }
              ]
            }
          ],
          "package": {
            "name": "exim-mon",
            "purl": "pkg:rpm/tuxcare/exim-mon?distro=almalinux-9.2",
            "ecosystem": "TuxCare:AlmaLinux:9.2"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1790254810.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4.99.5-1.el9_2.tuxcare.els2"
                }
              ]
            }
          ],
          "package": {
            "name": "exim-mysql",
            "purl": "pkg:rpm/tuxcare/exim-mysql?distro=almalinux-9.2",
            "ecosystem": "TuxCare:AlmaLinux:9.2"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1790254810.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "4.99.5-1.el9_2.tuxcare.els2"
                }
              ]
            }
          ],
          "package": {
            "name": "exim-pgsql",
            "purl": "pkg:rpm/tuxcare/exim-pgsql?distro=almalinux-9.2",
            "ecosystem": "TuxCare:AlmaLinux:9.2"
          },
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1790254810.json"
          }
        }
      ],
      "modified": "2026-10-26T09:30:51.499261714Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-94054",
        "CVE-2026-94057"
      ],
      "references": [
        "https://errata.tuxcare.com/els_os/almalinux9.2esu/CLSA-2026-1790254810.html",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-94054",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-94057"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-94054",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2026-94057",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 447288,
  "published_at": "2026-09-24T13:00:22+00:00"
}