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01 Record

CVE-2026-81934

Redis TLS pending-data list use-after-free

HighPUBLISHEDCNA: cisa-cg
CNA base score7.5 CVSS v4.0CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

02 Description

Redis TLS pending-data list use-after-free

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.47% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 41.0% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
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/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
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-08-31.
Red Hat severity
Important. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-08-27 19:40Z2 MO AGO
Last updated
2026-08-31 19:17Z1 MO AGO
Reserved
2026-08-27
Assigning CNA
cisa-cg
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
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
Weaknesses
Data version
5.2
Document digest
1f8d17daec8daf58a72996a50325ed3421c95f5ea7593ac92aad2d411663cfc9

05 Affected products

VendorProductVersionsPlatforms
RedisRedis0 to < 8.8.2, 0 to < 8.2.9, 0 to < 8.4.6, 0 to < 8.6.6, 0 to < 8.10.1, 0 to < 7.4.11, 0 to < 6.2.24, 0 to < 7.2.16—
RedisRedis Software (Enterprise)0 to < 8.2.0-46, 0 to < 8.0.20-96, 0 to < 7.22.2-179, 0 to < 7.8.6-303—

06 References

07 Fixed in

AlmaLinux 8

  • redis
    Fixed in 6.2.24-1.module_el8.10.0+4271+7f8f19af
  • redis-devel
    Fixed in 6.2.24-1.module_el8.10.0+4271+7f8f19af
  • redis-doc
    Fixed in 6.2.24-1.module_el8.10.0+4271+7f8f19af

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 9

  • redis
    Fixed in 6.2.24-1.el9_8
  • redis-devel
    Fixed in 6.2.24-1.el9_8
  • redis-doc
    Fixed in 6.2.24-1.el9_8

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • redis
    Fixed in 6.2.24-1.module_el8.10.0+4271+7f8f19af
  • redis-devel
    Fixed in 6.2.24-1.module_el8.10.0+4271+7f8f19af
  • redis-doc
    Fixed in 6.2.24-1.module_el8.10.0+4271+7f8f19af

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • redis
    Fixed in 6.2.24-1.el9_8
  • redis-devel
    Fixed in 6.2.24-1.el9_8
  • redis-doc
    Fixed in 6.2.24-1.el9_8

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • redis
    Fixed in 5:7.0.15-1~deb12u10

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • redis
    Fixed in 5:8.0.2-3+deb13u3

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • redis
    Fixed in 5:8.0.6-3

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • redis
    Fixed in 5:6.0.16-1ubuntu1.2

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • redis
    Fixed in 5:7.0.15-1ubuntu0.24.04.5

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.04 LTS

  • redis
    Fixed in 5:8.0.5-1ubuntu0.1

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.