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CVE-2026-114460 (GCVE-0-2026-114460)

Vulnerability from nvd – Published: 2026-10-22 06:37 – Updated: 2026-10-22 06:37

Title

Mod_qos: query truncation during json body merging permits security-rule bypass

Summary

A flaw was found in mod_qos. An off-by-one pointer calculation error occurs when merging request body parameters with an existing URL query, which truncates the query string during security evaluation while leaving the actual request unchanged. An unauthenticated remote attacker could exploit this vulnerability by submitting a crafted request that conceals prohibited values from inspection, resulting in a bypass of configured security rules.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-193 - Off-by-one Error

Assigner

fedora CNA under the redhat root

CNA scorecard C 69/100 over 38 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-114460	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2558401	issue-trackingx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version
pbuchbinder	mod_qos	Affected: 11.74 (custom) Affected: 11.76 (custom) Affected: 11.79 (custom)

Date Public

2026-10-21 14:45

Credits

Red Hat would like to thank Robin "drzobin" Larsson for reporting this issue.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://svn.code.sf.net/p/mod-qos/source/",
          "defaultStatus": "unknown",
          "packageName": "mod_qos",
          "product": "mod_qos",
          "vendor": "pbuchbinder",
          "versions": [
            {
              "status": "affected",
              "version": "11.74",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "11.76",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "11.79",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Red Hat would like to thank Robin \"drzobin\" Larsson for reporting this issue."
        }
      ],
      "datePublic": "2026-10-21T14:45:26.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A flaw was found in mod_qos. An off-by-one pointer calculation error occurs when merging request body parameters with an existing URL query, which truncates the query string during security evaluation while leaving the actual request unchanged. An unauthenticated remote attacker could exploit this vulnerability by submitting a crafted request that conceals prohibited values from inspection, resulting in a bypass of configured security rules."
        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
              "namespace": "https://access.redhat.com/security/updates/classification/",
              "value": "Moderate"
            },
            "type": "Red Hat severity rating"
          }
        },
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
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              "lang": "en",
              "type": "CWE"
            }
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        }
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        "orgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
        "shortName": "fedora"
      },
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        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2026-114460"
        },
        {
          "name": "RHBZ#2558401",
          "tags": [
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          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2558401"
        }
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          "lang": "en",
          "time": "2026-10-17T14:30:17.000Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-10-21T14:45:26.000Z",
          "value": "Made public."
        }
      ],
      "title": "Mod_qos: query truncation during json body merging permits security-rule bypass",
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
      "x_redhatCweChain": "CWE-193: Off-by-one Error"
    }
  },
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    "assignerOrgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
    "assignerShortName": "fedora",
    "cveId": "CVE-2026-114460",
    "datePublished": "2026-10-22T06:37:07.818Z",
    "dateReserved": "2026-10-21T14:38:50.235Z",
    "dateUpdated": "2026-10-22T06:37:07.818Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-114459 (GCVE-0-2026-114459)

Vulnerability from nvd – Published: 2026-10-22 06:37 – Updated: 2026-10-22 06:37

Title

Mod_qos: out-of-bounds reads in response-body substring matching

Summary

A flaw was found in mod_qos. When inspecting HTTP response bodies, improper boundary checking can cause the module to read memory outside allocated buffer boundaries. An unauthenticated remote attacker can exploit this vulnerability by triggering specifically crafted server responses, causing an Apache worker process to crash and resulting in a Denial of Service (DoS).

Severity

3.7 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-125 - Out-of-bounds Read

Assigner

fedora CNA under the redhat root

CNA scorecard C 69/100 over 38 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-114459	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2558397	issue-trackingx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version
pbuchbinder	mod_qos	Affected: 11.74 (custom) Affected: 11.76 (custom) Affected: 11.79 (custom)

Date Public

2026-10-21 14:45

Credits

Red Hat would like to thank Robin "drzobin" Larsson for reporting this issue.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://svn.code.sf.net/p/mod-qos/source/",
          "defaultStatus": "unknown",
          "packageName": "mod_qos",
          "product": "mod_qos",
          "vendor": "pbuchbinder",
          "versions": [
            {
              "status": "affected",
              "version": "11.74",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "11.76",
              "versionType": "custom"
            },
            {
              "status": "affected",
              "version": "11.79",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Red Hat would like to thank Robin \"drzobin\" Larsson for reporting this issue."
        }
      ],
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        {
          "lang": "en",
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        }
      ],
      "metrics": [
        {
          "other": {
            "content": {
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              "value": "Low"
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          }
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        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          },
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-125",
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            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-22T06:37:06.357Z",
        "orgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
        "shortName": "fedora"
      },
      "references": [
        {
          "tags": [
            "vdb-entry",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/security/cve/CVE-2026-114459"
        },
        {
          "name": "RHBZ#2558397",
          "tags": [
            "issue-tracking",
            "x_refsource_REDHAT"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2558397"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-10-17T14:26:41.000Z",
          "value": "Reported to Red Hat."
        },
        {
          "lang": "en",
          "time": "2026-10-21T14:45:26.000Z",
          "value": "Made public."
        }
      ],
      "title": "Mod_qos: out-of-bounds reads in response-body substring matching",
      "x_generator": {
        "engine": "cvelib 1.8.0"
      },
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    }
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    "assignerOrgId": "92fb86c3-55a5-4fb5-9c3f-4757b9e96dc5",
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    "cveId": "CVE-2026-114459",
    "datePublished": "2026-10-22T06:37:06.357Z",
    "dateReserved": "2026-10-21T14:38:50.235Z",
    "dateUpdated": "2026-10-22T06:37:06.357Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-114458 (GCVE-0-2026-114458)

Vulnerability from nvd – Published: 2026-10-22 06:37 – Updated: 2026-10-22 06:37

Title

Mod_qos: undersized connection-monitor scratch array permits heap buffer overflow

Summary

A flaw was found in mod_qos. An unauthenticated remote attacker can cause a Denial of Service (DoS) by maintaining numerous concurrent low-rate connections to a target server. When connection rate monitoring is active, the module fails to verify array boundaries when recording client IP addresses, allowing more connection records to be added than the allocated buffer can hold. This issue leads to heap memory corruption, which can crash the web server process.

Severity

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-787 - Out-of-bounds Write

Assigner

fedora CNA under the redhat root

CNA scorecard C 69/100 over 38 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-114458	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2558393	issue-trackingx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version
pbuchbinder	mod_qos	Affected: 11.74 (custom) Affected: 11.76 (custom) Affected: 11.79 (custom)

Date Public

2026-10-21 14:45

Credits

Red Hat would like to thank Robin "drzobin" Larsson for reporting this issue.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://svn.code.sf.net/p/mod-qos/source/",
          "defaultStatus": "unknown",
          "packageName": "mod_qos",
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          "vendor": "pbuchbinder",
          "versions": [
            {
              "status": "affected",
              "version": "11.74",
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            },
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            },
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              "status": "affected",
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              "versionType": "custom"
            }
          ]
        }
      ],
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        {
          "lang": "en",
          "value": "Red Hat would like to thank Robin \"drzobin\" Larsson for reporting this issue."
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        }
      ],
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        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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}

CVE-2026-114457 (GCVE-0-2026-114457)

Vulnerability from nvd – Published: 2026-10-22 06:37 – Updated: 2026-10-22 06:37

Title

Mod_qos: missing nul termination in json value escaping permits out-of-bounds reads

Summary

A flaw was found in mod_qos. An unauthenticated remote attacker could cause a Denial of Service (DoS) by sending a specially crafted JSON request when JSON body filtering is enabled. Due to improper string termination during the processing of percent-encoded input, the module reads past allocated memory boundaries, which can cause an Apache worker process to crash.

Severity

3.7 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-170 - Improper Null Termination

Assigner

fedora CNA under the redhat root

CNA scorecard C 69/100 over 38 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-114457	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2558311	issue-trackingx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version
pbuchbinder	mod_qos	Affected: 11.74 (custom) Affected: 11.76 (custom) Affected: 11.79 (custom)

Date Public

2026-10-21 14:45

Credits

Red Hat would like to thank Robin "drzobin" Larsson for reporting this issue.

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "collectionURL": "https://svn.code.sf.net/p/mod-qos/source/",
          "defaultStatus": "unknown",
          "packageName": "mod_qos",
          "product": "mod_qos",
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            },
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              "status": "affected",
              "version": "11.79",
              "versionType": "custom"
            }
          ]
        }
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        {
          "lang": "en",
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        }
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            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
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}

CVE-2026-114460 (GCVE-0-2026-114460)

Vulnerability from cvelistv5 – Published: 2026-10-22 06:37 – Updated: 2026-10-22 06:37

Title

Mod_qos: query truncation during json body merging permits security-rule bypass

Summary

A flaw was found in mod_qos. An off-by-one pointer calculation error occurs when merging request body parameters with an existing URL query, which truncates the query string during security evaluation while leaving the actual request unchanged. An unauthenticated remote attacker could exploit this vulnerability by submitting a crafted request that conceals prohibited values from inspection, resulting in a bypass of configured security rules.

Severity

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-193 - Off-by-one Error

Assigner

fedora CNA under the redhat root

CNA scorecard C 69/100 over 38 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-114460	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2558401	issue-trackingx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version
pbuchbinder	mod_qos	Affected: 11.74 (custom) Affected: 11.76 (custom) Affected: 11.79 (custom)

Date Public

2026-10-21 14:45

Credits

Red Hat would like to thank Robin "drzobin" Larsson for reporting this issue.

Show details on NVD website

JSON

To clipboard

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CVE-2026-114459 (GCVE-0-2026-114459)

Vulnerability from cvelistv5 – Published: 2026-10-22 06:37 – Updated: 2026-10-22 06:37

Title

Mod_qos: out-of-bounds reads in response-body substring matching

Summary

A flaw was found in mod_qos. When inspecting HTTP response bodies, improper boundary checking can cause the module to read memory outside allocated buffer boundaries. An unauthenticated remote attacker can exploit this vulnerability by triggering specifically crafted server responses, causing an Apache worker process to crash and resulting in a Denial of Service (DoS).

Severity

3.7 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-125 - Out-of-bounds Read

Assigner

fedora CNA under the redhat root

CNA scorecard C 69/100 over 38 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-114459	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2558397	issue-trackingx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version
pbuchbinder	mod_qos	Affected: 11.74 (custom) Affected: 11.76 (custom) Affected: 11.79 (custom)

Date Public

2026-10-21 14:45

Credits

Red Hat would like to thank Robin "drzobin" Larsson for reporting this issue.

Show details on NVD website

JSON

To clipboard

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CVE-2026-114458 (GCVE-0-2026-114458)

Vulnerability from cvelistv5 – Published: 2026-10-22 06:37 – Updated: 2026-10-22 06:37

Title

Mod_qos: undersized connection-monitor scratch array permits heap buffer overflow

Summary

A flaw was found in mod_qos. An unauthenticated remote attacker can cause a Denial of Service (DoS) by maintaining numerous concurrent low-rate connections to a target server. When connection rate monitoring is active, the module fails to verify array boundaries when recording client IP addresses, allowing more connection records to be added than the allocated buffer can hold. This issue leads to heap memory corruption, which can crash the web server process.

Severity

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-787 - Out-of-bounds Write

Assigner

fedora CNA under the redhat root

CNA scorecard C 69/100 over 38 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-114458	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2558393	issue-trackingx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version
pbuchbinder	mod_qos	Affected: 11.74 (custom) Affected: 11.76 (custom) Affected: 11.79 (custom)

Date Public

2026-10-21 14:45

Credits

Red Hat would like to thank Robin "drzobin" Larsson for reporting this issue.

Show details on NVD website

JSON

To clipboard

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CVE-2026-114457 (GCVE-0-2026-114457)

Vulnerability from cvelistv5 – Published: 2026-10-22 06:37 – Updated: 2026-10-22 06:37

Title

Mod_qos: missing nul termination in json value escaping permits out-of-bounds reads

Summary

A flaw was found in mod_qos. An unauthenticated remote attacker could cause a Denial of Service (DoS) by sending a specially crafted JSON request when JSON body filtering is enabled. Due to improper string termination during the processing of percent-encoded input, the module reads past allocated memory boundaries, which can cause an Apache worker process to crash.

Severity

3.7 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-170 - Improper Null Termination

Assigner

fedora CNA under the redhat root

CNA scorecard C 69/100 over 38 records in the last 180 days details

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-114457	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2558311	issue-trackingx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version
pbuchbinder	mod_qos	Affected: 11.74 (custom) Affected: 11.76 (custom) Affected: 11.79 (custom)

Date Public

2026-10-21 14:45

Credits

Red Hat would like to thank Robin "drzobin" Larsson for reporting this issue.

Show details on NVD website

JSON

To clipboard

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Find a vulnerability

Search criteria

8 vulnerabilities found for mod_qos by pbuchbinder

CVE-2026-114460 (GCVE-0-2026-114460)

CVE-2026-114459 (GCVE-0-2026-114459)

CVE-2026-114458 (GCVE-0-2026-114458)

CVE-2026-114457 (GCVE-0-2026-114457)

CVE-2026-114460 (GCVE-0-2026-114460)

CVE-2026-114459 (GCVE-0-2026-114459)

CVE-2026-114458 (GCVE-0-2026-114458)

CVE-2026-114457 (GCVE-0-2026-114457)