Vulnerability-Lookup

GHSA-P8X5-C6C9-8CWX

Vulnerability from github – Published: 2026-07-03 09:31 – Updated: 2026-07-06 18:30

Details

The curl logic that works with SASL authentication could end up cleaning up the GSASL context twice without clearing the pointer in between, making it free() the same pointer twice.

Severity

9.8 (Critical)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-8925"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-03T07:16:24Z",
    "severity": "CRITICAL"
  },
  "details": "The curl logic that works with SASL authentication could end up cleaning up\nthe GSASL context *twice* without clearing the pointer in between, making it\n`free()` the same pointer twice.",
  "id": "GHSA-p8x5-c6c9-8cwx",
  "modified": "2026-07-06T18:30:47Z",
  "published": "2026-07-03T09:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8925"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/3735193"
    },
    {
      "type": "WEB",
      "url": "https://curl.se/docs/CVE-2026-8925.html"
    },
    {
      "type": "WEB",
      "url": "https://curl.se/docs/CVE-2026-8925.json"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-8925 (GCVE-0-2026-8925)

Vulnerability from cvelistv5 – Published: 2026-07-03 06:15 – Updated: 2026-07-06 17:04

Title

SASL double-free

Summary

The curl logic that works with SASL authentication could end up cleaning up the GSASL context *twice* without clearing the pointer in between, making it `free()` the same pointer twice.

Severity

9.8 (Critical)


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

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-415 Double Free

Assigner

curl

References

3 references

URL	Tags
https://curl.se/docs/CVE-2026-8925.json
https://curl.se/docs/CVE-2026-8925.html
https://hackerone.com/reports/3735193

Impacted products

1 product

Vendor	Product	Version
curl	curl	Affected: 8.20.0 , ≤ 8.20.0 (semver) Affected: 8.19.0 , ≤ 8.19.0 (semver) Affected: 8.18.0 , ≤ 8.18.0 (semver) Affected: 8.17.0 , ≤ 8.17.0 (semver) Affected: 8.16.0 , ≤ 8.16.0 (semver) Affected: 8.15.0 , ≤ 8.15.0 (semver)

Credits

Joshua Rogers (Aisle Research) Viktor Szakats

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
              "integrityImpact": "HIGH",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-8925",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-06T17:03:39.068747Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-06T17:04:15.411Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://hackerone.com/reports/3735193"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "curl",
          "vendor": "curl",
          "versions": [
            {
              "lessThanOrEqual": "8.20.0",
              "status": "affected",
              "version": "8.20.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.19.0",
              "status": "affected",
              "version": "8.19.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.18.0",
              "status": "affected",
              "version": "8.18.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.17.0",
              "status": "affected",
              "version": "8.17.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.16.0",
              "status": "affected",
              "version": "8.16.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "8.15.0",
              "status": "affected",
              "version": "8.15.0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Joshua Rogers (Aisle Research)"
        },
        {
          "lang": "en",
          "type": "remediation developer",
          "value": "Viktor Szakats"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The curl logic that works with SASL authentication could end up cleaning up\nthe GSASL context *twice* without clearing the pointer in between, making it\n`free()` the same pointer twice."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-415 Double Free",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-03T06:15:25.448Z",
        "orgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
        "shortName": "curl"
      },
      "references": [
        {
          "name": "json",
          "url": "https://curl.se/docs/CVE-2026-8925.json"
        },
        {
          "name": "www",
          "url": "https://curl.se/docs/CVE-2026-8925.html"
        },
        {
          "name": "issue",
          "url": "https://hackerone.com/reports/3735193"
        }
      ],
      "title": "SASL double-free"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "2499f714-1537-4658-8207-48ae4bb9eae9",
    "assignerShortName": "curl",
    "cveId": "CVE-2026-8925",
    "datePublished": "2026-07-03T06:15:25.448Z",
    "dateReserved": "2026-05-19T08:11:49.032Z",
    "dateUpdated": "2026-07-06T17:04:15.411Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Action not permitted

GHSA-P8X5-C6C9-8CWX

CVE-2026-8925 (GCVE-0-2026-8925)

Tags

Sightings

Nomenclature