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6.3 Medium

redis-py before 4.5.3 leaves a connection open after canceling an async Redis command at an inopportune time, and can send response data to…

CVE-2023-28858

redis-py before 4.5.3, as used in ChatGPT and other products, leaves a connection open after canceling an async Redis command at an inopportune time (in the case of a pipeline operation), and can send response data to the client of an unrelated request in an off-by-one manner. The fixed versions for this CVE Record are 4.3.6, 4.4.3, and 4.5.3, but [are believed to be incomplete](https://github.com/redis/redis-py/issues/2665). CVE-2023-28859 has been assigned the issues caused by the incomplete fixes.

Assessment

CVSS
6.3 (v4.0)
Severity
Medium
EPSS
1.02% chance of exploitation in the next 30 days
Known exploited
Not listed in CISA KEV
Exploit availability
Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published
26 March 2023
Last updated
17 June 2026
Affected
n/a · n/a · redis
Weakness
CWE-193
Assigner
cve@mitre.org

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

At the source

References

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