CVE-2026-25589: RedisBloom is a probabilistic data structures module for Redis

Q: How do I fix CVE-2026-25589?

redisbloom: upgrade to 2.8.20. Exact commands for each OS are on this page.

Q: Is CVE-2026-25589 being exploited?

CVE-2026-25589 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-25589 affect?

CVE-2026-25589 affects redisbloom. Severity is high (CVSS 8.8). RedisBloom is a probabilistic data structures module for Redis. In all versions of RedisBloom before 2.8.20, the module does not properly validate serialized values processed through the Redis RESTORE command. An authenticated attacker with

This month

HIGH 8.8UPGRADE

CVE-2026-25589 is a high-severity flaw (CVSS 8.8) affecting redisbloom. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

RedisBloom is a probabilistic data structures module for Redis. In all versions of RedisBloom before 2.8.20, the module does not properly validate serialized values processed through the Redis RESTORE command. An authenticated attacker with permission to execute RESTORE on a server with the RedisBloom module loaded can supply a crafted serialized payload that triggers invalid memory access and may lead to remote code execution. A workaround is to

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Weakness	CWE-122
Published	2026-05-05
Last modified	2026-07-25

Publisher (CNA): GitHub, Inc. · Vendor: redisbloom

Last updated 2026-07-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-05 17:17 UTCPublished CVE record published
2026-07-25 11:10 UTCUpdated Record last modified

redisbloom redisbloom UPGRADE

Affected: < 2.8.20

Fixed in: 2.8.20

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy redisbloom || rpm -q redisbloom || redisbloom --version

2. UPGRADE to 2.8.20 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade redisbloom

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade redisbloom

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-25589?

redisbloom: upgrade to 2.8.20. Exact commands for each OS are on this page.

Is CVE-2026-25589 being exploited?

CVE-2026-25589 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-25589 affect?

CVE-2026-25589 affects redisbloom. Severity is high (CVSS 8.8). RedisBloom is a probabilistic data structures module for Redis. In all versions of RedisBloom before 2.8.20, the module does not properly validate serialized values processed through the Redis RESTORE command. An authenticated attacker with

How urgent is CVE-2026-25589?

Priority 50/100. High severity

Software pages

Redis vulnerabilities

References

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