GHSA-24wv-mv5m-xv4h · Severity: medium · Ecosystem: pip — redis-py Race Condition vulnerability
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.
Conclusion & alert: CVE-2023-28858 is rated Moderate Risk (43.1/100): CVSS Low severity, with medium exploitation likelihood (EPSS 1.44%). Mandatory action: Review affected assets and schedule remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-09 | 1.49% | 1.44% | -0.05% |
| 2 | 2026-01-20 | 1.40% | 1.49% | +0.09% |
| 3 | 2025-11-21 | — | 1.40% | — |
Full EPSS history (23 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 3.7 | 3.1 | LOW |
|
2.2 | 1.4 | [email protected] |
GHSA-24wv-mv5m-xv4h · Severity: medium · Ecosystem: pip — redis-py Race Condition vulnerability
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
low | CVE-2023-28858: 1 source package rows (py3-redis); 6 state rows across 6 repos (3.18-community, 3.19-community, 3.20-community, 3.21-community, 3.22-community, edge-community); fixed 6, open 0. | https://security.alpinelinux.org/vuln/CVE-2023-28858 |
debian
|
unimportant | CVE-2023-28858 unimportant priority: Debian including 1 source packages (python-redis), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 4, open 1. | https://security-tracker.debian.org/tracker/CVE-2023-28858 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2023-28858 |
suse
|
medium | CVE-2023-28858 severity moderate: SUSE including 126 source package names (0.1.6-1.2:python311-blinker-1.6.2-150400.12.7.4, 0.1.6-1.2:python311-oauthlib-3.2.2-150400.12.7.4, …), 3614 product×package rows across 131 product lines (Container bci/python, Container containers/lmcache-lmstack-router, … (131 product lines)): Fixed 3603, Known Not Affected 11. | https://www.suse.com/security/cve/CVE-2023-28858/ |
ubuntu
|
medium | CVE-2023-28858 medium priority: Ubuntu including 1 source packages (python-redis), 13 status rows across 13 suites (bionic, focal, jammy, kinetic, lunar, mantic, noble, oracular, plucky, questing, trusty, upstream, xenial): ignored 6, not-affected 4, needed 2, needs-triage 1. | https://ubuntu.com/security/CVE-2023-28858 |
| URL | Tags |
|---|---|
| https://github.com/redis/redis-py/compare/v4.3.5...v4.3.6 | Patch |
| https://github.com/redis/redis-py/compare/v4.4.2...v4.4.3 | Patch |
| https://github.com/redis/redis-py/compare/v4.5.2...v4.5.3 | Patch |
| https://github.com/redis/redis-py/issues/2624 | Issue Tracking |
| https://github.com/redis/redis-py/pull/2641 | Issue Tracking Patch |
| https://openai.com/blog/march-20-chatgpt-outage | Third Party Advisory |