CVE-2026-23479
redis-server use-after-free in unblock client flow may allow remote code execution
Description
Redis is an in-memory data structure store. In redis-server from 7.2.0 until 8.6.3, the unblock client flow does not handle an error return from `processCommandAndResetClient` when re-executing a blocked command. If a blocked client is evicted during this flow, an authenticated attacker can trigger a use-after-free that may lead to remote code execution. This has been patched in version 8.6.3.
INFO
Published Date :
May 5, 2026, 5:17 p.m.
Last Modified :
June 30, 2026, 3:17 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update Redis to version 8.6.3 or later.
- Apply the vendor-provided patch.
Public PoC/Exploit Available at Github
CVE-2026-23479 has a 7 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-23479.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-23479 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-23479
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
CVE-2026-23479 Redis Use-After-Free vulnerability detection tool
Python
None
None
Safe read-only version checker + Sigma rule for Redis CVE-2026-23479 (authenticated use-after-free → RCE). Find exposed instances, patch left-of-boom. By DugganUSA.
Python
None
Python
Desc "Fix Redis CVE ultil 20260508-10h51 GMT+7"
Shell
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
security cve exploit poc vulnerability
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-23479 vulnerability anywhere in the article.
-
The Hacker News
Palo Alto Warns of Active Exploitation of PAN-OS GlobalProtect VPN Flaw
Palo Alto Networks has revealed that it has observed "active exploitation" of a recently disclosed PAN-OS vulnerability by an unknown threat actor to obtain unauthorized access to GlobalProtect portal ... Read more
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Critical Splunk Enterprise Flaw Lets Attackers Run Code Without Authentication
Splunk has released security updates to address a critical security flaw in Splunk Enterprise that could be exploited to conduct unauthenticated file operations and even remote code execution. The vul ... Read more
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Instead of hiding on the laptops and servers defenders watch most closely, a China-nexus group spent close to a decade hidden inside the Linux login system itself. Sygnia, which tracks the group as Ve ... Read more
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The Hacker News
LangGraph Flaw Chain Exposes Self-Hosted AI Agents to Remote Code Execution
Cybersecurity researchers have disclosed details of three now-patched security flaws impacting LangGraph, including a critical vulnerability chain that could result in remote code execution. LangGraph ... Read more
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The Hacker News
ShinyHunters Exploits Oracle PeopleSoft Zero-Day (CVE-2026-35273) to Breach Universities
The ShinyHunters extortion crew exploited an unpatched flaw in Oracle PeopleSoft to break into enterprise systems, steal data, and demand payment to keep it private. The campaign hit universities hard ... Read more
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The Hacker News
New GreatXML Exploit Bypasses Windows BitLocker via Recovery Partition XML Files
Security researcher Chaotic Eclipse (aka Nightmare-Eclipse and MSNightmare) has released a new Windows BitLocker bypass dubbed GreatXML, a day after they published an exploit for Microsoft Defender. " ... Read more
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The Gentlemen Ransomware Claims 478 Victims, Can Spread Like a Worm
A new analysis of The Gentlemen operation has revealed that the financially motivated threat group initially operated as an affiliate responsible for conducting double extortion attacks, while leverag ... Read more
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ThreatsDay Bulletin: Worm Code Leaked, AI Agent Phished, Claude Action Patch + 28 New Stories
It's been one of those weeks. You expect the usual noise: recycled malware, sloppy attacks, another easy target getting hit. Instead, there's a supply chain attack kit in a public repo, a $5,000-a-mon ... Read more
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The Hacker News
China-Linked JDY Botnet Expands to 1,500+ Devices for Cyber Reconnaissance
Cybersecurity researchers have warned of a "resurgence and expansion" of JDY, a covert network associated with China-nexus state-sponsored threat actors. "The JDY botnet comprises over 1,500 SOHO [sma ... Read more
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The Hacker News
Ivanti, Fortinet, and SAP Release Patches for Multiple Critical Vulnerabilities
Fortinet, Ivanti, and SAP have released security updates to address multiple critical security vulnerabilities that could result in arbitrary code execution and information disclosure. The security fl ... Read more
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The Hacker News
Unpatched Langflow Flaw CVE-2026-5027 Exploited for Unauthenticated RCE
A high-severity unpatched security flaw in Langflow, an open-source low-code platform to build artificial intelligence (AI) applications, has come under active exploitation in the wild, according to f ... Read more
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The Hacker News
CISA Adds Cisco, Chrome, and Arista Flaws to KEV Catalog Amid Active Exploitation
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added three new vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, following reports of active exploitati ... Read more
-
The Hacker News
Microsoft Patches Record 206 Flaws, Including Three Zero-Days and Critical RCE Bugs
Microsoft on Tuesday released fixes for a record 206 security vulnerabilities impacting its software portfolio, including three flaws that have been publicly disclosed at the time of release. Of the 2 ... Read more
-
The Hacker News
Anthropic Releases Claude Fable 5, Its Most Powerful AI Yet, With Cyber Safeguards
On June 9, Anthropic released Claude Fable 5, the most capable model it has ever made, generally available. It also did something unusual: it shipped one model as two products, split not by capability ... Read more
-
The Hacker News
Microsoft Defender RoguePlanet Zero-Day Grants SYSTEM Access on Updated Windows
The anonymous security researcher going by the name Chaotic Eclipse (aka Nightmare-Eclipse) has released a proof-of-concept (PoC) exploit for yet another Microsoft Defender zero-day named RoguePlanet. ... Read more
-
The Hacker News
Six Proto6 Vulnerabilities in protobuf.js Expose Node.js Apps to RCE and DoS
Cybersecurity researchers have flagged half a dozen vulnerabilities in protobuf.js, a JavaScript and TypeScript implementation of Protocol Buffers (Protobuf), that, if successfully exploited, could re ... Read more
-
The Hacker News
Autonomous AI Tool Finds 2-Year-Old RCE Flaw in Redis (CVE-2026-23479)
Redis has patched a use-after-free in its blocking-client code that lets an authenticated user run arbitrary OS commands on the machine hosting the database. The flaw was found by an autonomous AI t ... Read more
-
CybersecurityNews
Critical Redis Vulnerabilities Enables Remote Code Execution Attacks
Five dangerous vulnerabilities in Redis expose Redis Cloud, Redis Software, and all open-source community editions to potential remote code execution, giving authenticated attackers a direct path to c ... Read more
The following table lists the changes that have been made to the
CVE-2026-23479 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
Jun. 30, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:/o:redhat:enterprise_linux_eus:10.0'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS (v. 10.0)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:10.2'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 10)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:rhel_eus:9.6::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream EUS (v.9.6)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:enterprise_linux:9::appstream'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux AppStream (v. 9)', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/a:redhat:hummingbird:1'], 'vendor': 'Red Hat', 'product': 'Red Hat Hardened Images', 'defaultStatus': 'affected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:8'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 8', 'defaultStatus': 'unaffected'}, {'cpes': ['cpe:/o:redhat:enterprise_linux:9'], 'vendor': 'Red Hat', 'product': 'Red Hat Enterprise Linux 9', 'defaultStatus': 'unaffected'}] Added CVSS V3.1 AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-416 Added Reference https://access.redhat.com/errata/RHSA-2026:25216 Added Reference https://access.redhat.com/errata/RHSA-2026:25219 Added Reference https://access.redhat.com/errata/RHSA-2026:25925 Added Reference https://access.redhat.com/errata/RHSA-2026:26306 Added Reference https://access.redhat.com/errata/RHSA-2026:26540 Added Reference https://access.redhat.com/security/cve/CVE-2026-23479 Added Reference https://bugzilla.redhat.com/show_bug.cgi?id=2466780 Added Reference https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23479.json -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'redis', 'product': 'redis', 'versions': [{'status': 'affected', 'version': '>= 7.2.0, < 8.6.3'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-23479', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-05-05T00:00:00+00:00'} -
Initial Analysis by [email protected]
May. 06, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:* versions from (including) 7.2.0 up to (excluding) 8.6.3 Added Reference Type GitHub, Inc.: https://github.com/redis/redis/releases/tag/8.6.3 Types: Release Notes Added Reference Type GitHub, Inc.: https://github.com/redis/redis/security/advisories/GHSA-93m2-935m-8rj3 Types: Vendor Advisory -
New CVE Received by [email protected]
May. 05, 2026
Action Type Old Value New Value Added Description Redis is an in-memory data structure store. In redis-server from 7.2.0 until 8.6.3, the unblock client flow does not handle an error return from `processCommandAndResetClient` when re-executing a blocked command. If a blocked client is evicted during this flow, an authenticated attacker can trigger a use-after-free that may lead to remote code execution. This has been patched in version 8.6.3. Added CVSS V4.0 AV:N/AC:H/AT:N/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 Added CWE CWE-416 Added Reference https://github.com/redis/redis/releases/tag/8.6.3 Added Reference https://github.com/redis/redis/security/advisories/GHSA-93m2-935m-8rj3