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
“—” beside the score: it is equal to NVD's CVSS score.
This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.4% (36th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
Also known asEUVD-2025-26392 (ENISA EUVD) · GHSA-hw6f-rjfj-j7j7 (GitHub Security Advisories)Source: ENISA EUVD
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 9.1
- EG Score
- 9.1CRITICALmedium confidence
- EG Risk
- 56EG Risk 56/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity91% × 45%Impact severity (EG Severity): CVSS 9.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation0.4% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability100% × 15%CISA's SSVC Automatable value: yes (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 0.4%
- EPSS %ILE
- 36th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.
- EG Severity
- 9.1 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
- EG Likelihood
- 0.4% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
August 29, 2025
Last Modified
October 19, 2026
Advisory Details (4)
Auto-updated Aug 1, 2026[SECURITY] [DLA 4289-1] python-eventlet security update
https://lists.debian.org/debian-lts-announce/2025/09/msg00003.htmlHTTP Request Smuggling due to improper handling of HTTP trailer section · Advisory · eventlet/eventlet · GitHub
https://github.com/eventlet/eventlet/security/advisories/GHSA-hw6f-rjfj-j7j7wsgi: discard trailers
Fix merged in eventlet/eventlet PR #1062 on 2025-08-11 — awaiting tagged release
https://github.com/eventlet/eventlet/pull/1062commit 0bfebd1117d3 (eventlet/eventlet)
Fix landed in eventlet/eventlet commit 0bfebd1117d3 — awaiting tagged release
https://github.com/eventlet/eventlet/commit/0bfebd1117d392559e25b4bfbfcc941754de88fbVendor 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(13)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| ubuntu | python3-eventlet (0.39.0-0ubuntu1.1) @ plucky | 2026-11-01 | 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-rhel9:1769082432 | 2026-02-04 | redhat |
| redhat | openshift4/ose-ironic-rhel9:1769561753 | 2026-02-04 | redhat |
| redhat | openshift4/ose-ironic-rhel9:1768695762 | 2026-02-03 | redhat |
| redhat | openshift4/ose-ironic-rhel9:1768198161 | 2026-01-22 | redhat |
| pip | eventlet @ 0.40.3 (fixes < 0.40.3) | — | ghsa |
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
(5 across 5 ecosystems)
Debian:11(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| python-eventlet | 0.26.1-7, 0.26.1-7+deb11u1 |
| — |
Debian:12(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| python-eventlet | 0.33.1-4 ... 0.40.4-4 (32 versions) |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| python-eventlet | 0.39.1-2 |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| python-eventlet | 0.39.1-2, 0.40.1-1, 0.40.1-2 |
| — |
PyPI(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| eventlet | 0.10.0 ... 0.9.17 (65 versions) |
| — |
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 21× in last 7d / 75× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 96 of 237 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 4 repeat rows among the latest 100 are merged into the row they repeat. The 141 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-11-01 14:39 UTCVendor advisory
- 2026-11-01 14:39 UTCGHSA enrichmentGHSA-hw6f-rjfj-j7j7 · GitHub severity MODERATE
- 2026-11-01 08:03 UTCGHSA enrichmentGHSA-hw6f-rjfj-j7j7 · GitHub severity MODERATE
- 2026-11-01 08:03 UTCEG score recompute
- 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-31 12:40 UTCEG score recompute
- 2026-10-31 12:40 UTCVendor advisory
- 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-30 10:41 UTCEG score recompute
- 2026-10-30 10:41 UTCVendor advisory
- 2026-10-29 16:31 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-29 08:42 UTCEG score recompute
- 2026-10-29 08:42 UTCVendor advisory
- 2026-10-28 16:30 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-10-28 06:41 UTCEG score recompute
- 2026-10-28 06:41 UTCVendor advisory
- 2026-10-27 16:30 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-10-27 04:42 UTCEG score recompute
- 2026-10-27 04:42 UTCVendor advisory
- 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-10-25 22:16 UTCEG score recompute
- 2026-10-25 22:16 UTCVendor advisory
- 2026-10-25 16:31 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-10-25 16:16 UTCEG score recompute
Show 71 moreShow fewer
- 2026-10-24 20:09 UTCEG score recompute
- 2026-10-24 20:09 UTCVendor advisory
- 2026-10-24 16:31 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
- 2026-10-23 18:10 UTCEG score recompute
- 2026-10-23 18:10 UTCVendor advisory
- 2026-10-23 16:30 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
- 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
- 2026-10-22 16:10 UTCEG score recompute
- 2026-10-22 16:10 UTCVendor advisory
- 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.4% · 31st percentile
- 2026-10-21 14:02 UTCEG score recompute
- 2026-10-21 14:02 UTCVendor advisory
- 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.4% · 31st percentile
- 2026-10-20 11:52 UTCVendor advisory
- 2026-10-19 17:29 UTCEG score recompute
- 2026-10-19 17:29 UTCVendor advisory
- 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.4% · 31st percentile
- 2026-10-19 03:20 UTCEG score recompute
- 2026-10-19 03:20 UTCVendor advisory
- 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.4% · 31st percentile
- 2026-10-18 05:24 UTCEG score recompute
- 2026-10-18 01:20 UTCEG score recompute
- 2026-10-18 01:20 UTCVendor advisory
- 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.4% · 31st percentile
- 2026-10-16 23:18 UTCEG score recompute
- 2026-10-16 23:18 UTCVendor advisory
- 2026-10-16 16:39 UTCEPSS rescoreEPSS 0.4% · 31st percentile
- 2026-10-15 20:36 UTCEG score recompute
- 2026-10-15 20:36 UTCVendor advisory
- 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.4% · 31st percentile
- 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.4% · 31st percentile
- 2026-10-14 14:42 UTCEG score recompute
- 2026-10-14 14:42 UTCVendor advisory
- 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.4% · 31st percentile
- 2026-10-13 12:40 UTCVendor advisory
- 2026-10-12 16:54 UTCEG score recompute
- 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.4% · 31st percentile
- 2026-10-12 10:40 UTCVendor advisory
- 2026-10-11 20:28 UTCEG score recompute
- 2026-10-11 18:40 UTCEG score recompute
- 2026-10-11 15:15 UTCEG score recompute
- 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.4% · 31st percentile
- 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.4% · 31st percentile
- 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-10-08 17:10 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-10-02 06:11 UTCOSV refresh
- 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-09-26 00:25 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.4% · 30th percentile
- 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
- 2026-09-21 21:06 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
- 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
- 2026-09-19 15:42 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
- 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
- 2026-09-17 19:29 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
- 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
- 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
- 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
- 2026-09-13 03:09 UTCOSV refresh
- 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
- 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
- 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
- 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
- 2026-09-08 21:59 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
Related CVEs(same product + same vendor + same CWE)
Same product
2 shownDebian:11:python-eventlet · PyPI:eventlet
Same vendor
6 shownredhat:RHSA-2026:1062 · redhat:RHSA-2026:2661 · redhat:RHSA-2026:0663
Same CWE
10 shownCWE-444
Frequently asked(5)
What is CVE-2025-58068?
When was the CVE record for CVE-2025-58068 published?
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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