Vulnerability-Lookup

CVE-2026-81934 (GCVE-0-2026-81934)

Vulnerability from cvelistv5 – Published: 2026-08-27 19:40 – Updated: 2026-08-31 19:17

Title

Redis TLS pending-data list use-after-free

Summary

Redis contains a use-after-free vulnerability in the 'tlsProcessPendingData()' function, which handles the TLS pending-data list if Redis is configured with TLS support. A remote, unauthenticated attacker may be able to execute arbitrary commands with the privileges of the Redis server.

Severity

7.1 (High)


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

7.5 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · cisa-cg (v2.0.3)

Decision recorded 2026-08-27 19:12 UTC

CWE

CWE-416 - Use After Free

Assigner

cisa-cg CISA root

References

24 references

URL	Tags
https://github.com/redis/redis/commit/6d088c335d5…	patch
https://github.com/v12-security/pocs/tree/main/re…	exploit
https://raw.githubusercontent.com/redis/redis/8.2…	release-notes
https://raw.githubusercontent.com/redis/redis/8.4…	release-notes
https://raw.githubusercontent.com/redis/redis/8.6…	release-notes
https://raw.githubusercontent.com/redis/redis/8.8…	release-notes
https://raw.githubusercontent.com/redis/redis/8.1…	release-notes
https://raw.githubusercontent.com/cisagov/CSAF/de…	third-party-advisory
https://www.cve.org/CVERecord?id=CVE-2026-81934	vdb-entry
https://github.com/redis/redis/releases/tag/6.2.24	release-notes
https://github.com/redis/redis/releases/tag/7.2.16	release-notes
https://github.com/redis/redis/releases/tag/7.4.11	release-notes
https://github.com/redis/redis/releases/tag/8.4.6	release-notes
https://github.com/redis/redis/releases/tag/8.2.9	release-notes
https://github.com/redis/redis/releases/tag/8.6.6	release-notes
https://github.com/redis/redis/releases/tag/8.8.2	release-notes
https://github.com/redis/redis/releases/tag/8.10.1	release-notes
https://redis.io/docs/latest/operate/rs/release-n…	release-notes
https://redis.io/docs/latest/operate/rs/release-n…	release-notes
https://redis.io/docs/latest/operate/rs/release-n…	release-notes
https://redis.io/docs/latest/operate/rs/release-n…	release-notes
https://raw.githubusercontent.com/redis/redis/7.4…	release-notes
https://raw.githubusercontent.com/redis/redis/7.2…	release-notes
https://raw.githubusercontent.com/redis/redis/6.2…	release-notes

Impacted products

2 products

Vendor	Product	Version	CPE status
Redis	Redis	Unaffected: 8.2.9 Unaffected: 8.4.6 Unaffected: 8.6.6 Unaffected: 8.8.2 Unaffected: 8.10.1 Unaffected: 7.4.11 Unaffected: 6.2.24 Unaffected: 7.2.16 Affected: 0 , < 8.8.2 (custom) Affected: 0 , < 8.2.9 (custom) Affected: 0 , < 8.4.6 (custom) Affected: 0 , < 8.6.6 (custom) Affected: 0 , < 8.10.1 (custom) Affected: 0 , < 7.4.11 (custom) Affected: 0 , < 6.2.24 (custom) Affected: 0 , < 7.2.16 (custom)	guessed
Redis	Redis Software (Enterprise)	Unaffected: 8.2.0-46 Unaffected: 8.0.20-96 Unaffected: 7.22.2-179 Unaffected: 7.8.6-303 Affected: 0 , < 8.2.0-46 (custom) Affected: 0 , < 8.0.20-96 (custom) Affected: 0 , < 7.22.2-179 (custom) Affected: 0 , < 7.8.6-303 (custom)	guessed

Date Public

2026-08-17 00:00

Show details on NVD website

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RLSA-2026:64824 (CVE-2026-66373)

Vulnerability from osv_rocky – Published: 2026-09-09 12:05 – Updated: 2026-09-19 18:13 – Source website

Summary

Important: redis security, bug fix, and enhancement update

Details

Redis is an advanced key-value store. It is often referred to as a data-structure server since keys can contain strings, hashes, lists, sets, and sorted sets. For performance, Redis works with an in-memory data set. You can persist it either by dumping the data set to disk every once in a while, or by appending each command to a log.

Security Fix(es):

redis: Redis: Remote Code Execution via specially crafted RESTORE payload (CVE-2026-66373)
redis: Redis: Arbitrary code execution via TLS pending-data list use-after-free (CVE-2026-81934)

Bug Fix(es) and Enhancement(s):

segfault because of Unsupported system page size (jemalloc) (JIRA:Rocky Linux-180910)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Severity

7.5 (High)


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

Credits

Rocky Enterprise Software Foundation

Red Hat

References

URL

Type

	https://errata.rockylinux.org/RLSA-2026:64824	ADVISORY
	https://bugzilla.redhat.com/show_bug.cgi?id=2506985	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2525226	REPORT
	https://access.redhat.com/errata/RHSA-2026:64824	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Rocky Linux:9",
        "name": "redis",
        "purl": "pkg:rpm/rocky-linux/redis?distro=rocky-linux-9\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "AppStream"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:6.2.24-1.el9_8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [
    {
      "name": "Rocky Enterprise Software Foundation"
    },
    {
      "name": "Red Hat"
    }
  ],
  "database_specific": {
    "license": "CC-BY-4.0",
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory": "RHSA-2026:64824"
  },
  "details": "Redis is an advanced key-value store. It is often referred to as a data-structure server since keys can contain strings, hashes, lists, sets, and sorted sets. For performance, Redis works with an in-memory data set. You can persist it either by dumping the data set to disk every once in a while, or by appending each command to a log.\n\nSecurity Fix(es):\n\n* redis: Redis: Remote Code Execution via specially crafted RESTORE payload (CVE-2026-66373)\n\n* redis: Redis: Arbitrary code execution via TLS pending-data list use-after-free (CVE-2026-81934)\n\nBug Fix(es) and Enhancement(s):\n\n* segfault because of Unsupported system page size (jemalloc) (JIRA:Rocky Linux-180910)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
  "id": "RLSA-2026:64824",
  "modified": "2026-09-19T18:13:17.825123Z",
  "published": "2026-09-09T12:05:17.368443Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:64824"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2506985"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2525226"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:64824"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Important: redis security, bug fix, and enhancement update",
  "upstream": [
    "CVE-2026-66373",
    "CVE-2026-81934"
  ]
}

RLSA-2026:65120 (CVE-2026-66373)

Vulnerability from osv_rocky – Published: 2026-09-09 12:05 – Updated: 2026-09-19 18:13 – Source website

Summary

Important: redis:7 security update

Details

Security Fix(es):

redis: Redis: Remote Code Execution via specially crafted RESTORE payload (CVE-2026-66373)
redis: Redis: Denial of Service via Out-of-Bounds Read in Cluster Bus (CVE-2026-72568)
redis: Redis: Arbitrary code execution via TLS pending-data list use-after-free (CVE-2026-81934)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Severity

7.5 (High)


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

Credits

Rocky Enterprise Software Foundation

Red Hat

References

URL

Type

	https://errata.rockylinux.org/RLSA-2026:65120	ADVISORY
	https://bugzilla.redhat.com/show_bug.cgi?id=2506985	REPORT
	https://bugzilla.redhat.com/show_bug.cgi?id=2525226	REPORT
	https://access.redhat.com/errata/RHSA-2026:65120	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Rocky Linux:9",
        "name": "redis",
        "purl": "pkg:rpm/rocky-linux/redis?distro=rocky-linux-9\u0026epoch=0"
      },
      "ranges": [
        {
          "database_specific": {
            "yum_repository": "AppStream"
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0:7.2.16-1.module+el9.8.0+40315+e15874a8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [
    {
      "name": "Rocky Enterprise Software Foundation"
    },
    {
      "name": "Red Hat"
    }
  ],
  "database_specific": {
    "license": "CC-BY-4.0",
    "license_url": "https://creativecommons.org/licenses/by/4.0/",
    "source_advisory": "RHSA-2026:65120"
  },
  "details": "Redis is an advanced key-value store. It is often referred to as a data-structure server since keys can contain strings, hashes, lists, sets, and sorted sets. For performance, Redis works with an in-memory data set. You can persist it either by dumping the data set to disk every once in a while, or by appending each command to a log.\n\nSecurity Fix(es):\n\n* redis: Redis: Remote Code Execution via specially crafted RESTORE payload (CVE-2026-66373)\n\n* redis: Redis: Denial of Service via Out-of-Bounds Read in Cluster Bus (CVE-2026-72568)\n\n* redis: Redis: Arbitrary code execution via TLS pending-data list use-after-free (CVE-2026-81934)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
  "id": "RLSA-2026:65120",
  "modified": "2026-09-19T18:13:18.150139Z",
  "published": "2026-09-09T12:05:17.368443Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://errata.rockylinux.org/RLSA-2026:65120"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2506985"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2525226"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:65120"
    }
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Important: redis:7 security update",
  "upstream": [
    "CVE-2026-66373",
    "CVE-2026-72568",
    "CVE-2026-81934"
  ]
}

SUSE-SU-2026:3990-1

Vulnerability from csaf_suse - Published: 2026-09-07 07:20 - Updated: 2026-09-17 16:45

Summary

Security update for redis

Severity

Important

Scope

1 vulnerability in this advisory, including CVE-2026-81934.

CVE-2026-81934

7.5 (High)


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

Recommended: 12 products

Open the full advisory

SUSE-SU-2026:3991-1

Vulnerability from csaf_suse - Published: 2026-09-07 07:21 - Updated: 2026-09-17 16:45

Summary

Security update for redis7

Severity

Important

Scope

1 vulnerability in this advisory, including CVE-2026-81934.

CVE-2026-81934

7.5 (High)


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

Recommended: 12 products

Open the full advisory

SUSE-SU-2026:4069-1

Vulnerability from csaf_suse - Published: 2026-09-08 07:05 - Updated: 2026-09-17 16:47

Summary

Security update for redis7

Severity

Important

Scope

1 vulnerability in this advisory, including CVE-2026-81934.

CVE-2026-81934

7.5 (High)


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

Recommended: 18 products

Open the full advisory

UBUNTU-CVE-2026-81934 (CVE-2026-81934)

Vulnerability from osv_ubuntu – Published: 2026-08-27 20:18 – Updated: 2026-09-16 11:43 – Source website

Details

Severity

7.1 (High)


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

7.5 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-81934	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-81934	REPORT
	https://github.com/redis/redis/commit/6d088c335d5…	REPORT
	https://github.com/redis/redis/commit/6d088c335d5…	REPORT
	https://github.com/v12-security/pocs/tree/main/re…	REPORT
	https://raw.githubusercontent.com/redis/redis/8.1…	REPORT
	https://raw.githubusercontent.com/redis/redis/8.2…	REPORT
	https://raw.githubusercontent.com/redis/redis/8.4…	REPORT
	https://raw.githubusercontent.com/redis/redis/8.6…	REPORT
	https://raw.githubusercontent.com/redis/redis/8.8…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "redis-server",
            "binary_version": "2:2.8.4-2ubuntu0.2+esm5"
          },
          {
            "binary_name": "redis-tools",
            "binary_version": "2:2.8.4-2ubuntu0.2+esm5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "redis",
        "purl": "pkg:deb/ubuntu/redis@2:2.8.4-2ubuntu0.2+esm5?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:2.6.13-1",
        "2:2.6.16-3",
        "2:2.8.0-1",
        "2:2.8.2-1",
        "2:2.8.4-2",
        "2:2.8.4-2ubuntu0.2",
        "2:2.8.4-2ubuntu0.2+esm1",
        "2:2.8.4-2ubuntu0.2+esm2",
        "2:2.8.4-2ubuntu0.2+esm3",
        "2:2.8.4-2ubuntu0.2+esm4",
        "2:2.8.4-2ubuntu0.2+esm5"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "redis-sentinel",
            "binary_version": "2:3.0.6-1ubuntu0.4+esm5"
          },
          {
            "binary_name": "redis-server",
            "binary_version": "2:3.0.6-1ubuntu0.4+esm5"
          },
          {
            "binary_name": "redis-tools",
            "binary_version": "2:3.0.6-1ubuntu0.4+esm5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "redis",
        "purl": "pkg:deb/ubuntu/redis@2:3.0.6-1ubuntu0.4+esm5?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2:3.0.3-3",
        "2:3.0.5-1",
        "2:3.0.5-2",
        "2:3.0.5-3",
        "2:3.0.5-4",
        "2:3.0.6-1",
        "2:3.0.6-1ubuntu0.2",
        "2:3.0.6-1ubuntu0.3",
        "2:3.0.6-1ubuntu0.4",
        "2:3.0.6-1ubuntu0.4+esm1",
        "2:3.0.6-1ubuntu0.4+esm2",
        "2:3.0.6-1ubuntu0.4+esm3",
        "2:3.0.6-1ubuntu0.4+esm4",
        "2:3.0.6-1ubuntu0.4+esm5"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "redis",
            "binary_version": "5:4.0.9-1ubuntu0.2+esm7"
          },
          {
            "binary_name": "redis-sentinel",
            "binary_version": "5:4.0.9-1ubuntu0.2+esm7"
          },
          {
            "binary_name": "redis-server",
            "binary_version": "5:4.0.9-1ubuntu0.2+esm7"
          },
          {
            "binary_name": "redis-tools",
            "binary_version": "5:4.0.9-1ubuntu0.2+esm7"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "redis",
        "purl": "pkg:deb/ubuntu/redis@5:4.0.9-1ubuntu0.2+esm7?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4:4.0.1-7",
        "4:4.0.2-6",
        "4:4.0.2-9",
        "5:4.0.5-1",
        "5:4.0.6-1",
        "5:4.0.6-2",
        "5:4.0.7-1",
        "5:4.0.8-1",
        "5:4.0.8-2",
        "5:4.0.9-1",
        "5:4.0.9-1ubuntu0.1",
        "5:4.0.9-1ubuntu0.2",
        "5:4.0.9-1ubuntu0.2+esm2",
        "5:4.0.9-1ubuntu0.2+esm3",
        "5:4.0.9-1ubuntu0.2+esm4",
        "5:4.0.9-1ubuntu0.2+esm5",
        "5:4.0.9-1ubuntu0.2+esm6",
        "5:4.0.9-1ubuntu0.2+esm7"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "redis",
            "binary_version": "5:5.0.7-2ubuntu0.1+esm4"
          },
          {
            "binary_name": "redis-sentinel",
            "binary_version": "5:5.0.7-2ubuntu0.1+esm4"
          },
          {
            "binary_name": "redis-server",
            "binary_version": "5:5.0.7-2ubuntu0.1+esm4"
          },
          {
            "binary_name": "redis-tools",
            "binary_version": "5:5.0.7-2ubuntu0.1+esm4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "redis",
        "purl": "pkg:deb/ubuntu/redis@5:5.0.7-2ubuntu0.1+esm4?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5:5.0.5-2build1",
        "5:5.0.6-1",
        "5:5.0.7-1",
        "5:5.0.7-2",
        "5:5.0.7-2ubuntu0.1~esm1",
        "5:5.0.7-2ubuntu0.1",
        "5:5.0.7-2ubuntu0.1+esm1",
        "5:5.0.7-2ubuntu0.1+esm2",
        "5:5.0.7-2ubuntu0.1+esm3",
        "5:5.0.7-2ubuntu0.1+esm4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "redis",
            "binary_version": "5:6.0.16-1ubuntu1.1+esm1"
          },
          {
            "binary_name": "redis-sentinel",
            "binary_version": "5:6.0.16-1ubuntu1.1+esm1"
          },
          {
            "binary_name": "redis-server",
            "binary_version": "5:6.0.16-1ubuntu1.1+esm1"
          },
          {
            "binary_name": "redis-tools",
            "binary_version": "5:6.0.16-1ubuntu1.1+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "redis",
        "purl": "pkg:deb/ubuntu/redis@5:6.0.16-1ubuntu1.1+esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5:6.0.15-1",
        "5:6.0.16-1",
        "5:6.0.16-1build1",
        "5:6.0.16-1ubuntu1",
        "5:6.0.16-1ubuntu1+esm1",
        "5:6.0.16-1ubuntu1+esm2",
        "5:6.0.16-1ubuntu1.1",
        "5:6.0.16-1ubuntu1.1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "redis",
            "binary_version": "5:7.0.15-1ubuntu0.24.04.4"
          },
          {
            "binary_name": "redis-sentinel",
            "binary_version": "5:7.0.15-1ubuntu0.24.04.4"
          },
          {
            "binary_name": "redis-server",
            "binary_version": "5:7.0.15-1ubuntu0.24.04.4"
          },
          {
            "binary_name": "redis-tools",
            "binary_version": "5:7.0.15-1ubuntu0.24.04.4"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "redis",
        "purl": "pkg:deb/ubuntu/redis@5:7.0.15-1ubuntu0.24.04.4?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5:7.0.12-1",
        "5:7.0.14-1",
        "5:7.0.14-2",
        "5:7.0.15-1",
        "5:7.0.15-1build1",
        "5:7.0.15-1build2",
        "5:7.0.15-1ubuntu0.24.04.1",
        "5:7.0.15-1ubuntu0.24.04.2",
        "5:7.0.15-1ubuntu0.24.04.3",
        "5:7.0.15-1ubuntu0.24.04.4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "redis",
            "binary_version": "5:8.0.5-1"
          },
          {
            "binary_name": "redis-sentinel",
            "binary_version": "5:8.0.5-1"
          },
          {
            "binary_name": "redis-server",
            "binary_version": "5:8.0.5-1"
          },
          {
            "binary_name": "redis-tools",
            "binary_version": "5:8.0.5-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "redis",
        "purl": "pkg:deb/ubuntu/redis@5:8.0.5-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5:8.0.2-3build1",
        "5:8.0.2-3ubuntu0.25.10.1",
        "5:8.0.5-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Redis contains a use-after-free vulnerability in the \u0027tlsProcessPendingData()\u0027 function, which handles the TLS pending-data list if Redis is configured with TLS support. A remote, unauthenticated attacker may be able to execute arbitrary commands with the privileges of the Redis server.",
  "id": "UBUNTU-CVE-2026-81934",
  "modified": "2026-09-16T11:43:09Z",
  "published": "2026-08-27T20:18:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-81934"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-81934"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/redis/redis/commit/6d088c335d5c3ec49a6c28486140b498e70b7834"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/redis/redis/commit/6d088c335d5c3ec49a6c28486140b498e70b7834"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/v12-security/pocs/tree/main/redis/server_ssl"
    },
    {
      "type": "REPORT",
      "url": "https://raw.githubusercontent.com/redis/redis/8.10/00-RELEASENOTES"
    },
    {
      "type": "REPORT",
      "url": "https://raw.githubusercontent.com/redis/redis/8.2/00-RELEASENOTES"
    },
    {
      "type": "REPORT",
      "url": "https://raw.githubusercontent.com/redis/redis/8.4/00-RELEASENOTES"
    },
    {
      "type": "REPORT",
      "url": "https://raw.githubusercontent.com/redis/redis/8.6/00-RELEASENOTES"
    },
    {
      "type": "REPORT",
      "url": "https://raw.githubusercontent.com/redis/redis/8.8/00-RELEASENOTES"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-81934"
  ]
}

VA-26-239-01

Vulnerability from csaf_cisa - Published: 2026-08-27 19:51 - Updated: 2026-08-27 19:51

Summary

Redis TLS pending-data list use-after-free

Scope

1 vulnerability in this advisory, including CVE-2026-81934.

CVE-2026-81934

9.8 (Critical)


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

Known affected: 1 product Fixed: 5 products

https://github.com/redis/redis/commit/6d088c335d5c3ec49a6c2…

Open the full advisory

WID-SEC-W-2026-3077

Vulnerability from csaf_certbund - Published: 2026-08-27 22:00 - Updated: 2026-09-10 22:00

Summary

Redis: Mehrere Schwachstellen

Severity

Hoch

Scope

1 vulnerability in this advisory, including CVE-2026-81934.

CVE-2026-81934

Known affected: 8 products

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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-81934 (GCVE-0-2026-81934)

RLSA-2026:64824 (CVE-2026-66373)

RLSA-2026:65120 (CVE-2026-66373)

SUSE-SU-2026:3990-1

SUSE-SU-2026:3991-1

SUSE-SU-2026:4069-1

UBUNTU-CVE-2026-81934 (CVE-2026-81934)

VA-26-239-01

WID-SEC-W-2026-3077

Tags

Sightings

Nomenclature

Related by attack behaviour