Eventlet is a concurrent networking library for Python. Prior to version 0.40.3, the Eventlet WSGI parser is vulnerable to HTTP Request Smuggling due to improper handling of HTTP trailer sections. This vulnerability could enable attackers to, bypass front-end security controls, launch targeted attacks against active site users, and poison web caches. This problem has been patched in Eventlet 0.40.3 by dropping trailers which is a breaking change if a backend behind eventlet.wsgi proxy requires trailers. A workaround involves not using eventlet.wsgi facing untrusted clients.
CVE-2025-58068
This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 72% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 9.1
- EG Score
- 9.1(medium)
- EG Risk
- —
- EPSS
- 28.5%
- KEV
- Not listed
Published
August 29, 2025
Last Modified
November 3, 2025
References (4)
- security-advisories@githubhttps://github.com/eventlet/eventlet/commit/0bfebd1117d392559e25b4bfbfcc941754de88fb
- security-advisories@githubhttps://github.com/eventlet/eventlet/pull/1062
- security-advisories@githubhttps://github.com/eventlet/eventlet/security/advisories/GHSA-hw6f-rjfj-j7j7
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/09/msg00003.html
Vendor Advisories for CVE-2025-58068(11)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:3870Red Hat Product SecurityHigh
Red Hat Security Advisory: OpenShift Container Platform 4.12.86 bug fix and security update
- RHSA-2026:3422Red Hat Product SecurityHigh
Red Hat Security Advisory: OpenShift Container Platform 4.13.64 bug fix and security update
- RHSA-2026:2990Red Hat Product SecurityHigh
Red Hat Security Advisory: OpenShift Container Platform 4.14.62 bug fix and security update
- RHSA-2026:2661Red Hat Product SecurityHigh
Red Hat Security Advisory: OpenShift Container Platform 4.16.57 bug fix and security update
- RHSA-2026:1959Red Hat Product SecurityMedium
Red Hat Security Advisory: Red Hat OpenStack Services on OpenShift 18.0 (python-eventlet) security update
- RHSA-2026:2129Red Hat Product SecurityHigh
Red Hat Security Advisory: OpenShift Container Platform 4.21.1 bug fix and security update
- RHSA-2026:1549Red Hat Product SecurityMedium
Red Hat Security Advisory: OpenShift Container Platform 4.15.61 bug fix and security update
- RHSA-2026:1552Red Hat Product SecurityHigh
Red Hat Security Advisory: OpenShift Container Platform 4.19.23 bug fix and security update
- +3 more
Patch Availability(12)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | python3-eventlet (0.39.0-0ubuntu1.1) @ plucky | 2026-05-29 | ubuntu |
| redhat | openshift4/ose-ironic-rhel9:1772155649 | 2026-03-12 | redhat |
| redhat | openshift4/ose-ironic-rhel9:1771853307 | 2026-03-05 | redhat |
| redhat | openshift4/ose-ironic-rhel9:1770733664 | 2026-02-26 | redhat |
| redhat | openshift4/ose-ironic-rhel9:1770654676 | 2026-02-18 | redhat |
| redhat | python-eventlet-0:0.33.1-7.el9ost | 2026-02-13 | redhat |
| redhat | openshift4/ose-ironic-rhel9:1769726200 | 2026-02-10 | redhat |
| redhat | openshift4/ose-ironic-rhel9:1769529683 | 2026-02-05 | redhat |
| redhat | openshift4/ose-ironic-rhel9:1769561753 | 2026-02-04 | redhat |
| redhat | openshift4/ose-ironic-rhel9:1769082432 | 2026-02-04 | redhat |
| redhat | openshift4/ose-ironic-rhel9:1768695762 | 2026-02-03 | redhat |
| redhat | openshift4/ose-ironic-rhel9:1768198161 | 2026-01-22 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| eventlet | 0.10.0 ... 0.9.17 (65 versions) | 0.40.3 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(1)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
Data Freshness Timeline
(refreshed 9× in last 7d / 43× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:08 UTCEPSS rescore
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- 2026-07-06 16:27 UTCEPSS rescore
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- 2026-07-06 16:01 UTCOSV refresh
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- 2026-06-18 17:52 UTCEPSS rescore
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- 2026-06-18 04:05 UTCOSV refresh
- 2026-06-17 17:52 UTCEPSS rescore
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- 2026-05-29 23:41 UTCEG score recompute
- 2026-05-29 23:41 UTCVendor advisory
- 2026-05-29 19:20 UTCOSV refresh
- 2026-05-29 13:44 UTCEPSS rescore
Related CVEs(same vendor + same CWE)
Same vendor
10 shownredhat
Same CWE
10 shownCWE-444
Frequently asked(5)
What is CVE-2025-58068?
When was CVE-2025-58068 disclosed?
Is CVE-2025-58068 actively exploited?
What is the CVSS score of CVE-2025-58068?
How do I remediate CVE-2025-58068?
Dependency Blast Radius
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