A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted Online Certificate Status Protocol (OCSP) response during a TLS handshake. Due to a logic error in how gnutls processes multi-record OCSP responses, a client with OCSP verification enabled may incorrectly accept a revoked server certificate, potentially leading to a compromise of trust.
CVE-2026-3832
“—” beside the score: it is equal to the CVSS score beside it.
Score 3.7 from GitHub Security Advisory (severity: LOW) published 2026-04-30. A secondary CVSS source baseline 3.7; sources differ by 0.0.
Also known asEUVD-2026-26402 (ENISA EUVD) · GHSA-3rqj-4qqw-jgwr (GitHub Security Advisories)Source: ENISA EUVD
- CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
A fix is available — apply it.
- CVSS v3
- 3.7
- EG Score
- 3.7LOWmedium confidence
- EG Risk
- 33EG Risk 33/100
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)Severity37% × 45%Impact severity (EG Severity): CVSS 3.7 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation40% × 40%EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).Exploitation public PoC (CISA Vulnrichment) · Automatable no (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. - EPSS PROB
- 0.8%
- EPSS %ILE
- 56th
- 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 (3.7): severity, escalated by confirmed exploitation. This CVE's 3.7 is its impact severity (EG Severity), not escalated.
- EG Severity
- 3.7 LOWCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
- EG Likelihood
- 0.8% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-26). 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; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
In CISA KEV no (CISA's KEV catalog) · Automatable no (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
April 30, 2026
Last Modified
October 26, 2026
References (18)
- secalert@redhathttps://access.redhat.com/errata/RHSA-2026:13274Third Party Advisory · Vendor Advisory
- secalert@redhathttps://access.redhat.com/errata/RHSA-2026:20612Vendor Advisory
- secalert@redhathttps://access.redhat.com/errata/RHSA-2026:20613Vendor Advisory
- secalert@redhathttps://access.redhat.com/errata/RHSA-2026:26319Vendor Advisory
- secalert@redhathttps://access.redhat.com/errata/RHSA-2026:26409Vendor Advisory
- secalert@redhathttps://access.redhat.com/errata/RHSA-2026:29197Vendor Advisory
- secalert@redhathttps://access.redhat.com/errata/RHSA-2026:58981Vendor Advisory
- secalert@redhathttps://access.redhat.com/errata/RHSA-2026:72502Vendor Advisory
- secalert@redhathttps://access.redhat.com/errata/RHSA-2026:82304Vendor Advisory
- secalert@redhathttps://access.redhat.com/errata/RHSA-2026:82322Vendor Advisory
- secalert@redhathttps://access.redhat.com/errata/RHSA-2026:82347Vendor Advisory
- secalert@redhathttps://access.redhat.com/errata/RHSA-2026:82354Vendor Advisory
- secalert@redhathttps://access.redhat.com/errata/RHSA-2026:82372Vendor Advisory
- secalert@redhathttps://access.redhat.com/errata/RHSA-2026:82857Vendor Advisory
- secalert@redhathttps://access.redhat.com/errata/RHSA-2026:82888Vendor Advisory
15 of 18 shown · show the other 3
- secalert@redhathttps://access.redhat.com/security/cve/CVE-2026-3832Third Party Advisory · VDB Entry
- secalert@redhathttps://bugzilla.redhat.com/show_bug.cgi?id=2445762Issue Tracking · Third Party Advisory
- secalert@redhat · CISA-ADPhttps://gitlab.com/gnutls/gnutls/-/issues/1801Exploit · Issue Tracking · Vendor Advisory
Vendor Advisories for CVE-2026-3832(17)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:82888Red Hat Product SecurityHigh
Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.17.2
- RHSA-2026:82857Red Hat Product SecurityHigh
Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.18.2
- RHSA-2026:82372Red Hat Product SecurityHigh
Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.18.2
- RHSA-2026:82354Red Hat Product SecurityHigh
Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.18.2
- RHSA-2026:82347Red Hat Product SecurityHigh
Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.18.2
- RHSA-2026:82322Red Hat Product SecurityHigh
Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.17.2
- RHSA-2026:82304Red Hat Product SecurityHigh
Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.17.2
- RHSA-2026:72502Red Hat Product SecurityHigh
Red Hat Security Advisory: cert-manager Operator for Red Hat OpenShift 1.20.1
- +9 more
Patch Availability(16)
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
(7 across 7 ecosystems)
Alpine:v3.20(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| gnutls | — |
| — |
Alpine:v3.21(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| gnutls | — |
| — |
Alpine:v3.22(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| gnutls | — |
| — |
Alpine:v3.23(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| gnutls | — |
| — |
Alpine:v3.24(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| gnutls | — |
| — |
Debian:13(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| gnutls28 | 3.8.9-3, 3.8.9-3+deb13u1, 3.8.9-3+deb13u2, 3.8.9-3+deb13u3 |
| — |
Debian:14(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| gnutls28 | 3.8.10-1 ... 3.8.9-3 (11 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 11× in last 7d / 52× 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 99 of 257 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. 1 repeat row among the latest 100 is merged into the row it repeats. The 158 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.8% · 56th percentile
- 2026-10-26 22:10 UTCEG score recompute
- 2026-10-26 22:10 UTCVendor advisory
- 2026-10-26 22:10 UTCGHSA enrichmentGHSA-3rqj-4qqw-jgwr · GitHub severity LOW · GitHub CVSS 3.7
- 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.8% · 56th percentile
- 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.8% · 56th percentile
- 2026-10-25 14:32 UTCEG score recompute
- 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.9% · 60th percentile
- 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.9% · 60th percentile
- 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.9% · 60th percentile
- 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.9% · 60th percentile
- 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.9% · 59th percentile
- 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.9% · 59th percentile
- 2026-10-18 03:44 UTCEG score recompute
- 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.9% · 59th percentile
- 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.9% · 59th percentile
- 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.9% · 59th percentile
- 2026-10-14 20:46 UTCEG score recompute
- 2026-10-14 20:46 UTCVendor advisory
- 2026-10-14 20:46 UTCGHSA enrichmentGHSA-3rqj-4qqw-jgwr · GitHub severity LOW · GitHub CVSS 3.7
- 2026-10-14 19:55 UTCEG score recompute
- 2026-10-14 19:55 UTCVendor advisory
- 2026-10-14 19:55 UTCGHSA enrichmentGHSA-3rqj-4qqw-jgwr · GitHub severity LOW · GitHub CVSS 3.7
- 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.9% · 59th percentile
- 2026-10-14 04:35 UTCEG score recompute
Show 74 moreShow fewer
- 2026-10-14 04:35 UTCVendor advisory
- 2026-10-14 04:35 UTCGHSA enrichmentGHSA-3rqj-4qqw-jgwr · GitHub severity LOW · GitHub CVSS 3.7
- 2026-10-14 03:36 UTCEG score recompute
- 2026-10-14 03:36 UTCVendor advisory
- 2026-10-14 03:36 UTCGHSA enrichmentGHSA-3rqj-4qqw-jgwr · GitHub severity LOW · GitHub CVSS 3.7
- 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.9% · 57th percentile
- 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.9% · 57th percentile
- 2026-10-12 16:10 UTCEG score recompute
- 2026-10-11 19:53 UTCEG score recompute
- 2026-10-11 17:06 UTCEG score recompute
- 2026-10-11 14:33 UTCEG score recompute
- 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.9% · 57th percentile
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.9% · 56th percentile
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.9% · 56th percentile
- 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.9% · 56th percentile
- 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.9% · 56th percentile
- 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.9% · 56th percentile
- 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.9% · 56th percentile
- 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.9% · 56th percentile
- 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.9% · 56th percentile
- 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.9% · 56th percentile
- 2026-09-29 01:20 UTCEG score recompute
- 2026-09-29 01:20 UTCVendor advisory
- 2026-09-29 01:20 UTCGHSA enrichmentGHSA-3rqj-4qqw-jgwr · GitHub severity LOW · GitHub CVSS 3.7
- 2026-09-29 00:56 UTCEG score recompute
- 2026-09-29 00:56 UTCVendor advisory
- 2026-09-29 00:56 UTCGHSA enrichmentGHSA-3rqj-4qqw-jgwr · GitHub severity LOW · GitHub CVSS 3.7
- 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.9% · 56th percentile
- 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.9% · 56th percentile
- 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.9% · 56th percentile
- 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-09-20 11:51 UTCOSV refresh
- 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.7% · 53rd percentile
- 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-09-01 13:50 UTCEG score recompute
- 2026-09-01 13:50 UTCVendor advisory
- 2026-09-01 13:50 UTCGHSA enrichmentGHSA-3rqj-4qqw-jgwr · GitHub severity LOW · GitHub CVSS 3.7
- 2026-09-01 12:22 UTCEG score recompute
- 2026-09-01 12:22 UTCVendor advisory
- 2026-09-01 12:22 UTCGHSA enrichmentGHSA-3rqj-4qqw-jgwr · GitHub severity LOW · GitHub CVSS 3.7
- 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-08-31 16:42 UTCEG score recompute
- 2026-08-31 16:42 UTCVendor advisory
- 2026-08-31 16:42 UTCGHSA enrichmentGHSA-3rqj-4qqw-jgwr · GitHub severity LOW · GitHub CVSS 3.7
- 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
- 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-08-25 10:23 UTCEG score recompute
- 2026-08-25 10:23 UTCVendor advisory
- 2026-08-25 10:23 UTCGHSA enrichmentGHSA-3rqj-4qqw-jgwr · GitHub severity LOW · GitHub CVSS 3.7
- 2026-08-25 10:12 UTCEG score recompute
- 2026-08-25 10:12 UTCVendor advisory
- 2026-08-25 10:11 UTCGHSA enrichmentGHSA-3rqj-4qqw-jgwr · GitHub severity LOW · GitHub CVSS 3.7
- 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.7% · 51st percentile
- 2026-08-21 13:22 UTCEG score recompute
- 2026-08-21 13:22 UTCVendor advisory
Related CVEs(same product + same vendor + same CWE)
Same product
10 shownAlpine:v3.20:gnutls
Same vendor
10 shownredhat:RHSA-2026:13274
Frequently asked(5)
What is CVE-2026-3832?
When was CVE-2026-3832 made public?
Is CVE-2026-3832 actively exploited?
What is the CVSS score of CVE-2026-3832?
How do I remediate CVE-2026-3832?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-3832
Is Your Infrastructure Affected by CVE-2026-3832?
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