Vulnerability-Lookup

CVE-2026-63041 (GCVE-0-2026-63041)

Vulnerability from cvelistv5 – Published: 2026-08-26 11:34 – Updated: 2026-08-26 12:31

Title

Apache APISIX: attach-consumer-label does not strip client-supplied consumer-label headers

Summary

Reliance on Untrusted Inputs in a Security Decision vulnerability in Apache APISIX. This vulnerability allows an attacker to escalate privilege or perform an authorization bypass by sending certain values that the attach-consumer-label plugin does not sanitise correctly. This issue affects Apache APISIX: from 3.11.0 through 3.17.0. Users are recommended to upgrade to version 3.18.0, which fixes the issue.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-26 12:31 UTC

CWE

CWE-807 - Reliance on Untrusted Inputs in a Security Decision

Assigner

apache mitre root

References

2 references

URL	Tags
https://lists.apache.org/thread/yg9tgn699rz7kyglw…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version	CPE status
Apache Software Foundation	Apache APISIX	Affected: 3.11.0 , ≤ 3.17.0 (semver)	guessed

Credits

tonghuaroot

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-63041

Vulnerability from fkie_nvd - Published: 2026-08-26 12:16 - Updated: 2026-08-26 16:45

Severity

5.3 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Summary

References

	URL	Tags
	security@apache.org	https://lists.apache.org/thread/yg9tgn699rz7kyglw82m1775do8frjr4
	af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/08/26/11

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Apache APISIX",
          "vendor": "Apache Software Foundation",
          "versions": [
            {
              "lessThanOrEqual": "3.17.0",
              "status": "affected",
              "version": "3.11.0",
              "versionType": "semver"
            }
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        }
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    }
  ],
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    }
  ],
  "id": "CVE-2026-63041",
  "lastModified": "2026-08-26T16:45:12.020",
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          "baseScore": 5.3,
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          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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GHSA-H244-W3G4-3CV4

Vulnerability from github – Published: 2026-08-26 18:31 – Updated: 2026-08-26 18:31

Details

Reliance on Untrusted Inputs in a Security Decision vulnerability in Apache APISIX.

This vulnerability allows an attacker to escalate privilege or perform an authorization bypass by sending certain values that the attach-consumer-label plugin does not sanitise correctly.

This issue affects Apache APISIX: from 3.11.0 through 3.17.0.

Users are recommended to upgrade to version 3.18.0, which fixes the issue.

Severity

5.3 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

Show details on source website

JSON

To clipboard

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  "affected": [],
  "aliases": [
    "CVE-2026-63041"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-807"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-26T12:16:21Z",
    "severity": "MODERATE"
  },
  "details": "Reliance on Untrusted Inputs in a Security Decision vulnerability in Apache APISIX.\n\nThis vulnerability allows an attacker to escalate privilege or perform an authorization bypass by sending certain values that the attach-consumer-label plugin does not sanitise correctly.\n\n\nThis issue affects Apache APISIX: from 3.11.0 through 3.17.0.\n\n\n\nUsers are recommended to upgrade to version 3.18.0, which fixes the issue.",
  "id": "GHSA-h244-w3g4-3cv4",
  "modified": "2026-08-26T18:31:54Z",
  "published": "2026-08-26T18:31:54Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63041"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/yg9tgn699rz7kyglw82m1775do8frjr4"
    },
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      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/08/26/11"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-63041 (GCVE-0-2026-63041)

FKIE_CVE-2026-63041

GHSA-H244-W3G4-3CV4

Tags

Sightings

Nomenclature