Heimdall is a cloud native Identity Aware Proxy and Access Control Decision service. When using Heimdall in envoy gRPC decision API mode with versions 0.7.0-alpha through 0.17.10, wrong encoding of the query URL string allows rules with non-wildcard path expressions to be bypassed. Envoy splits the requested URL into parts, and sends the parts individually to Heimdall. Although query and path are present in the API, the query field is documented to be always empty and the URL query is included in the path field. The implementation uses go's url library to reconstruct the url which automatically encodes special characters in the path. As a consequence, a parameter like /mypath?foo=bar to Path is escaped into /mypath%3Ffoo=bar. Subsequently, a rule matching /mypath no longer matches and is bypassed. The issue can only lead to unintended access if Heimdall is configured with an "allow all" default rule. Since v0.16.0, Heimdall enforces secure defaults and refuses to start with such a configuration unless this enforcement is explicitly disabled, e.g. via --insecure-skip-secure-default-rule-enforcement or the broader --insecure flag. This issue has been fixed in version 0.17.11.
CVE-2026-32811
“▲” beside the score: it is higher than NVD's CVSS score.
Score 8.2 from GitHub Security Advisory (severity: HIGH) published 2026-03-18. NVD baseline CVSS 7.5; sources differ by 0.7.
Also known asEUVD-2026-13437 (ENISA EUVD) · GHSA-r8x2-fhmf-6mxp (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
- 7.5
- EG Score
- 8.2HIGHmedium confidence
- EG Risk
- 68EG Risk 68/100
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)Severity82% × 45%Impact severity (EG Severity): CVSS 8.2 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.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 public PoC (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
- 0.3%
- EPSS %ILE
- 24th
- 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 (8.2): severity, escalated by confirmed exploitation. This CVE's 8.2 is its impact severity (EG Severity), not escalated.
- EG Severity
- 8.2 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
- EG Likelihood
- 0.3% 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 public PoC (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
March 20, 2026
Last Modified
June 17, 2026
Advisory Details (4)
Auto-updated Aug 2, 2026envoy/api/envoy/service/auth/v3/attribute_context.proto at 105b4acd422d67fcff908ec38d91c7676d079939 · envoyproxy/envoy · GitHub
https://github.com/envoyproxy/envoy/blob/105b4acd422d67fcff908ec38d91c7676d079939/api/envoy/service/auth/v3/attribute_context.proto#L146-L147Path received via Envoy gRPC corrupted when containing query string · Advisory · dadrus/heimdall · GitHub
https://github.com/dadrus/heimdall/security/advisories/GHSA-r8x2-fhmf-6mxpfix: Split query from path in envoy gRPC based ExtAuth integration
Fix merged in dadrus/heimdall PR #3106 on 2026-03-15 — awaiting tagged release
https://github.com/dadrus/heimdall/pull/3106commit 50321b3007db (dadrus/heimdall)
Fix landed in dadrus/heimdall commit 50321b3007db — awaiting tagged release
https://github.com/dadrus/heimdall/commit/50321b3007db1ccafdc6b1cfd6bdc3689c19a502Patch Availability(1)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| go | github.com/dadrus/heimdall @ 0.17.11 (fixes >= 0.7.0-alpha, <= 0.17.10) | — | 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
(1 across 1 ecosystem)
Go(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| github.com/dadrus/heimdall | — |
| — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 40× 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 108 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 12 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.3% · 24th percentile
- 2026-11-01 07:54 UTCGHSA enrichmentGHSA-r8x2-fhmf-6mxp · GitHub severity HIGH · GitHub CVSS 8.2
- 2026-11-01 07:54 UTCEG score recompute▲ 0.70
- 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.3% · 24th percentile
- 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.3% · 24th percentile
- 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.3% · 24th percentile
- 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
- 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
- 2026-10-27 11:20 UTCEG score recompute
- 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
- 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
- 2026-10-25 14:35 UTCEG score recompute
- 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.4% · 37th percentile
- 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-19 00:49 UTCEG score recompute
- 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-18 03:47 UTCEG score recompute
- 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.4% · 35th percentile
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- 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-10-12 15:47 UTCEG score recompute
- 2026-10-11 19:56 UTCEG score recompute
- 2026-10-11 17:09 UTCEG score recompute
- 2026-10-11 14:36 UTCEG score recompute
- 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-10-11 08:25 UTCOSV refresh
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.4% · 34th percentile
- 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
- 2026-09-21 21:01 UTCOSV refresh
- 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-02 17:08 UTCOSV refresh
- 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-24 14:17 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-16 11:05 UTCEG score recompute
- 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-14 07:16 UTCEG score recompute
- 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-12 21:57 UTCEG score recompute
- 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-11 21:24 UTCEG score recompute
- 2026-08-11 04:27 UTCEG score recompute
- 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-09 19:40 UTCEG score recompute
- 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-09 06:49 UTCEG score recompute
- 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-07 17:19 UTCEG score recompute
- 2026-08-06 19:23 UTCEG score recompute
- 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
- 2026-08-06 01:30 UTCEG score recompute
Related CVEs(same product + same CWE)
Same product
5 shownGo:github.com/dadrus/heimdall
Frequently asked(5)
What is CVE-2026-32811?
When was the CVE record for CVE-2026-32811 published?
Is CVE-2026-32811 actively exploited?
What is the CVSS score of CVE-2026-32811?
How do I remediate CVE-2026-32811?
Dependency Blast Radius
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