CVE-2026-23631 Details
Redis is an in-memory data structure store. In all versions of redis-server with Lua scripting, an authenticated attacker can exploit the master-replica synchronization mechanism to trigger a use-after-free on replicas where replica-read-only is disabled or can be disabled, which may lead to remote code execution. A workaround is to prevent users from executing Lua scripts or avoid using replicas where replica-read-only is disabled. This is patched in version 8.6.3.
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Exploit prediction scoring system (EPSS) score for CVE-2026-23631
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
2.8 Probability of exploitation activity being observed over the next 30 days (85th percentile)
CVSS score for CVE-2026-23631
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
8.1 High
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Medium
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CVE-2026-23631 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 3,406 19.32%
CN 2,690 15.26%
DE 2,631 14.92%
RU 1,280 7.26%
FR 817 4.63%
SG 788 4.47%
GB 620 3.52%
IN 544 3.09%
VN 414 2.35%
NL 411 2.33%

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CVE-2026-23631 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 11,072 89.32%
Telecommunications 1,105 8.91%
Retail 73 0.59%
Education 66 0.53%
Government/Politics 24 0.19%
Business Services 17 0.14%
Media/Entertainment 13 0.10%
Manufacturing 6 0.05%
Energy/Resources 6 0.05%
Consumer Goods 4 0.03%

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