Vulnerability-Lookup

CVE-2026-74848 (GCVE-0-2026-74848)

Vulnerability from cvelistv5 – Published: 2026-08-27 09:16 – Updated: 2026-08-27 12:05

Title

Apache APISIX: Cross-user response poisoning in serverless plugins

Summary

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache APISIX. An attacker could make other clients receive attacker-chosen or other users' responses on serverless-plugin routes. This issue affects Apache APISIX: from 2.12.0 through 3.17.0. Users are recommended to upgrade to version 3.18.0, which fixes the issue.

Severity

7 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-27 12:05 UTC

CWE

CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

Assigner

apache mitre root

References

2 references

URL	Tags
https://lists.apache.org/thread/xdgpszmw8dw4wvmfx…	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: 2.12.0 , ≤ 3.17.0 (semver)	guessed

Credits

Xclow3n (Rajat Raghav)

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-74848

Vulnerability from fkie_nvd - Published: 2026-08-27 10:16 - Updated: 2026-08-27 10:16

Severity

7.0 (High) - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

Summary

References

	URL	Tags
	security@apache.org	https://lists.apache.org/thread/xdgpszmw8dw4wvmfxy043d83m150kx3n

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": "2.12.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@apache.org"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027) vulnerability in Apache APISIX.\n\nAn attacker could make other clients receive attacker-chosen or other users\u0027 responses on serverless-plugin routes.\n\n\n\n\nThis issue affects Apache APISIX: from 2.12.0 through 3.17.0.\n\n\n\nUsers are recommended to upgrade to version 3.18.0, which fixes the issue."
    }
  ],
  "id": "CVE-2026-74848",
  "lastModified": "2026-08-27T10:16:36.337",
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          "attackVector": "NETWORK",
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          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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GHSA-3G86-XCPQ-WPPJ

Vulnerability from github – Published: 2026-08-27 12:30 – Updated: 2026-08-27 12:30

Details

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache APISIX.

An attacker could make other clients receive attacker-chosen or other users' responses on serverless-plugin routes.

This issue affects Apache APISIX: from 2.12.0 through 3.17.0.

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

Severity

7.0 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-74848"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-444"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-27T10:16:36Z",
    "severity": "HIGH"
  },
  "details": "Inconsistent Interpretation of HTTP Requests (\u0027HTTP Request/Response Smuggling\u0027) vulnerability in Apache APISIX.\n\nAn attacker could make other clients receive attacker-chosen or other users\u0027 responses on serverless-plugin routes.\n\n\n\n\nThis issue affects Apache APISIX: from 2.12.0 through 3.17.0.\n\n\n\nUsers are recommended to upgrade to version 3.18.0, which fixes the issue.",
  "id": "GHSA-3g86-xcpq-wppj",
  "modified": "2026-08-27T12:30:25Z",
  "published": "2026-08-27T12:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74848"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/xdgpszmw8dw4wvmfxy043d83m150kx3n"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/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-2026-74848 (GCVE-0-2026-74848)

FKIE_CVE-2026-74848

GHSA-3G86-XCPQ-WPPJ

Tags

Sightings

Nomenclature