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MediumFix available

PSIRT HTTP/2 Bomb CVE-2026-49975

Type: patchSources: Fortinet PSIRT

The announcement identifies a denial-of-service vulnerability in Apache HTTP Server and lists affected and fixed Fortinet product versions. A virtual patch is available in an FMWP database update.

Products
FortiManager, FortiPAM, FortiProxy, FortiSwitchManager
Affected versions
1.0 all versions, 1.1 all versions, 1.2 all versions, 1.3 all versions, 1.4 all versions, 1.5 all versions, 1.6 all versions, 1.7 all versions, 1.8 all versions, 1.9.0 through 1.9.1, 7.2 all versions, 7.2.0 through 7.2.9, 7.4 all versions, 7.4.0 through 7.4.14, 7.6.0 through 7.6.6, 7.6.0 through 7.6.7, 8.0.0
Fixed versions
1.9.2 or above, 7.6.7 or above, 8.0.1 or above, upcoming 7.2.10 or above, upcoming 7.4.15 or above, upcoming 7.6.8 or above
CVEs
CVE-2026-49975
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 19:53 UTC · Revision 1

Source evidence

PSIRT HTTP/2 Bomb CVE-2026-49975

official-fortinet-psirt · Original source

Published 12 Aug 2026, 07:00 UTC

The announcement identifies a denial-of-service vulnerability in Apache HTTP Server and lists affected and fixed Fortinet product versions. A virtual patch is available in an FMWP database update.

Virtual Patch named "Multiple.Web.Servers.CVE-2026-49975.HTTP2.Bomb.DoS." is available in FMWP db update 26.082

FortiManager

Fixed versions: 8.0.1 or above, upcoming 7.6.8 or above

FortiPAM

Fixed versions: 1.9.2 or above

FortiProxy

Fixed versions: 7.6.7 or above, upcoming 7.4.15 or above

FortiSwitchManager

Fixed versions: upcoming 7.2.10 or above

Complete source record
{
  "id": "bc7938ccdd09289fdeff706dd3bb231605ff513fe0679746348b5c4f44f8353a",
  "url": "https://fortiguard.fortinet.com/psirt/FG-IR-26-163",
  "method": "llm",
  "payload": {
    "kind": "patch",
    "title": "PSIRT HTTP/2 Bomb CVE-2026-49975",
    "summary": "The announcement identifies a denial-of-service vulnerability in Apache HTTP Server and lists affected and fixed Fortinet product versions. A virtual patch is available in an FMWP database update.",
    "evidence": "Virtual Patch named \"Multiple.Web.Servers.CVE-2026-49975.HTTP2.Bomb.DoS.\" is available in FMWP db update 26.082",
    "products": [
      {
        "name": {
          "value": "FortiManager",
          "evidence": "FortiManager 8.0"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "8.0.1 or above",
            "evidence": "Upgrade to 8.0.1 or above"
          },
          {
            "value": "upcoming 7.6.8 or above",
            "evidence": "Upgrade to upcoming 7.6.8 or above"
          }
        ],
        "affected_versions": [
          {
            "value": "8.0.0",
            "evidence": "8.0.0 Upgrade to 8.0.1 or above"
          },
          {
            "value": "7.6.0 through 7.6.7",
            "evidence": "7.6.0 through 7.6.7 Upgrade to upcoming 7.6.8 or above"
          },
          {
            "value": "7.4 all versions",
            "evidence": "7.4 all versions Migrate to a fixed release"
          },
          {
            "value": "7.2 all versions",
            "evidence": "7.2 all versions Migrate to a fixed release"
          }
        ]
      },
      {
        "name": {
          "value": "FortiPAM",
          "evidence": "FortiPAM 1.9"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.9.2 or above",
            "evidence": "Upgrade to 1.9.2 or above"
          }
        ],
        "affected_versions": [
          {
            "value": "1.9.0 through 1.9.1",
            "evidence": "1.9.0 through 1.9.1 Upgrade to 1.9.2 or above"
          },
          {
            "value": "1.8 all versions",
            "evidence": "1.8 all versions Migrate to a fixed release"
          },
          {
            "value": "1.7 all versions",
            "evidence": "1.7 all versions Migrate to a fixed release"
          },
          {
            "value": "1.6 all versions",
            "evidence": "1.6 all versions Migrate to a fixed release"
          },
          {
            "value": "1.5 all versions",
            "evidence": "1.5 all versions Migrate to a fixed release"
          },
          {
            "value": "1.4 all versions",
            "evidence": "1.4 all versions Migrate to a fixed release"
          },
          {
            "value": "1.3 all versions",
            "evidence": "1.3 all versions Migrate to a fixed release"
          },
          {
            "value": "1.2 all versions",
            "evidence": "1.2 all versions Migrate to a fixed release"
          },
          {
            "value": "1.1 all versions",
            "evidence": "1.1 all versions Migrate to a fixed release"
          },
          {
            "value": "1.0 all versions",
            "evidence": "1.0 all versions Migrate to a fixed release"
          }
        ]
      },
      {
        "name": {
          "value": "FortiProxy",
          "evidence": "FortiProxy 7.6"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "7.6.7 or above",
            "evidence": "Upgrade to 7.6.7 or above"
          },
          {
            "value": "upcoming 7.4.15 or above",
            "evidence": "Upgrade to upcoming 7.4.15 or above"
          }
        ],
        "affected_versions": [
          {
            "value": "7.6.0 through 7.6.6",
            "evidence": "7.6.0 through 7.6.6 Upgrade to 7.6.7 or above"
          },
          {
            "value": "7.4.0 through 7.4.14",
            "evidence": "7.4.0 through 7.4.14 Upgrade to upcoming 7.4.15 or above"
          },
          {
            "value": "7.2 all versions",
            "evidence": "7.2 all versions Migrate to a fixed release"
          }
        ]
      },
      {
        "name": {
          "value": "FortiSwitchManager",
          "evidence": "FortiSwitchManager 7.2"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "upcoming 7.2.10 or above",
            "evidence": "Upgrade to upcoming 7.2.10 or above"
          }
        ],
        "affected_versions": [
          {
            "value": "7.2.0 through 7.2.9",
            "evidence": "7.2.0 through 7.2.9 Upgrade to upcoming 7.2.10 or above"
          }
        ]
      }
    ],
    "severity": "medium",
    "fixed_cves": [],
    "related_cves": [
      {
        "value": "CVE-2026-49975",
        "evidence": "CVE ID CVE-2026-49975"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "Severity Medium"
  },
  "source_id": "official-fortinet-psirt",
  "document_id": 23573,
  "published_at": "2026-08-12T07:00:00+00:00"
}