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Fencer Vulns
low 3.7

CVE-2023-28858 json

redis-py Race Condition vulnerability

published 2023-03-26 3 y ago modified 2026-06-17 4 mo ago also GHSA-24wv-mv5m-xv4h , PYSEC-2023-45 , EUVD-2023-0222

cvss
3.7
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 63%
public exploits
0
none known

Summary

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 the client of an unrelated request in an off-by-one manner. NOTE: this CVE Record was initially created in response to reports about ChatGPT, and 4.3.6, 4.4.3, and 4.5.3 were released (changing the behavior for pipeline operations); however, please see CVE-2023-28859 about addressing data leakage across AsyncIO connections in general.

Patch / fix

  • pypi redis 4.3.6, 4.4.3, 4.5.3
  • redis redis-py 4.3.6, 4.4.3, 4.5.3
  • python-redis Debian 14, Debian 13 5.2.1-1

debian advisories DEBIAN-CVE-2023-28858

  • python-pip SLE Module for Python 3 15 SP6, SLE Module for Python 3 15 SP5, SLE Module for Public Cloud 15 SP4 +2 more 22.3.1-150400.17.16.4
  • python-scp SLE Module for Python 3 15 SP6, SLE Module for Python 3 15 SP5, SLE Module for Public Cloud 15 SP4 +2 more 0.14.5-150400.12.7.4
  • python-avro SLE Module for Public Cloud 15 SP6, SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 +2 more 1.11.3-150400.10.4.1
  • python-sure SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4, openSUSE Leap 15.5 2.0.1-150400.12.4.4
  • python-tqdm SLE Module for Python 3 15 SP6, SLE Module for Python 3 15 SP5, SLE Module for Public Cloud 15 SP4 +2 more 4.66.1-150400.9.7.4
  • python-yarl SLE Module for Python 3 15 SP6, SLE Module for Python 3 15 SP5, SLE Module for Public Cloud 15 SP4 +2 more 1.9.2-150400.8.7.4
  • python-zipp SLE Module for Python 3 15 SP5, SLE Module for Public Cloud 15 SP4, openSUSE Leap 15.6 +1 more 3.15.0-150400.10.7.1
  • python-knack SLE Module for Public Cloud 15 SP6, SLE Module for Public Cloud 15 SP5, SLE Module for Public Cloud 15 SP4 +2 more 0.11.0-150400.10.4.4

suse advisories SUSE-SU-2024:1639-1SUSE-SU-2024:1639-2

  • python-redis openSUSE Tumbleweed 7.0.1-2.5

opensuse advisories openSUSE-SU-2026:12036-1

  • py3-redis Alpine 3.24, Alpine 3.23, Alpine 3.22 +4 more 4.5.4-r0

alpine advisories ALPINE-CVE-2023-28858

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-28858 updated cvss 4.3

redis: Async command information disclosure

  • Red Hat Ansible Automation Platform 1.2 ansible-tower
    affected: no fix planned “Will not fix”
  • Red Hat OpenStack Platform 13 (Queens) redis
    affected: no fix planned “Out of support scope”
  • Red Hat Quay 3 quay/quay-rhel8
    affected: no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
20 mo ago

Exploit prediction

1.01% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
GitHub 3.1 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem package affected fixed in
pypi redis
>=4.4.0, <4.4.3
>=4.5.0, <4.5.3
>=4.2.0, <4.3.6
4.4.3
4.5.3
4.3.6

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.