CVE-2026-61709

MEDIUMPre-NVD 5.35.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 5.3 from GitHub Security Advisory (severity: MODERATE) published 2026-09-16. A secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this week

Also known asEUVD-2026-80777 (ENISA EUVD) · GHSA-g3pg-frfm-pr2m (GitHub Security Advisories) · GO-2026-6488 (OSV.dev)Source: ENISA EUVD

5.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

OpenFGA is an authorization and permission engine built for developers. Prior to 1.18.1, the ListUsers API could return a user that should have been excluded when an authorization relation used an intersection containing a base but not excluded operand, the base was granted through a type-bound public wildcard, and the excluded user also had a concrete tuple through another intersection operand. In pkg/server/commands/listusers/list_users_rpc.go, expandIntersection counted the concrete tuple and wildcard without first rejecting entries in excludedUsersMap. Applications that used ListUsers to enumerate or enforce access could therefore treat an excluded user as authorized. This issue is fixed in version 1.18.1.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100

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)
Severity53% × 45%
Impact severity (EG Severity): CVSS 5.3 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.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (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
0.4%
EPSS %ILE
28th
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 (5.3): severity, escalated by confirmed exploitation. This CVE's 5.3 is its impact severity (EG Severity), not escalated.

EG Severity
5.3 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
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 every mission impact level.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, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (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.

The score's inputs: 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

September 16, 2026

Last Modified

September 24, 2026

Advisory Details (3)

Auto-updated Sep 16, 2026
Patch available. Sources: github, github_commit, github_release.
GitHub release Patch Available

v1.18.1

Patch available: openfga/openfga v1.18.1

https://github.com/openfga/openfga/releases/tag/v1.18.1
GitHub commit

commit 171806c93b86 (openfga/openfga)

Fix landed in openfga/openfga commit 171806c93b86 — awaiting tagged release

https://github.com/openfga/openfga/commit/171806c93b86bca29e0212ceb8b6ee9c48eb9ac3
GitHub advisoryMentions a patch (unverified)

OpenFGA Improper Policy Enforcement · Advisory · openfga/openfga · GitHub

https://github.com/openfga/openfga/security/advisories/GHSA-g3pg-frfm-pr2m

Patch Availability(6)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatgrafana13-1-main-13.1.6-0.4.hum12026-09-28redhat
redhatgrafana13-1-main-13.1.6-0.3.hum12026-09-23redhat
redhatgrafana12-4-main-12.4.10-0.6.hum12026-09-18redhat
redhatgrafana12-4-main-12.4.10-0.5.hum12026-09-17redhat
redhatgrafana13-2-main-13.2.1-0.4.hum12026-09-15redhat
gogithub.com/openfga/openfga @ 1.18.1 (fixes <= 1.18.0)—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)
PackageVulnerable rangeFix by version rangeDependents
github.com/openfga/openfga—
  • every version up to 1.18.1: fixed in 1.18.1
—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 55× 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.

  1. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  2. 2026-11-01 07:41 UTCGHSA enrichmentGHSA-g3pg-frfm-pr2m · GitHub severity MODERATE · GitHub CVSS 5.3
  3. 2026-11-01 07:41 UTCEG score recompute
  4. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  5. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  6. 2026-10-30 09:25 UTCOSV refresh
  7. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  8. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  9. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  10. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  11. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  12. 2026-10-25 14:14 UTCEG score recompute
  13. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  14. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  15. 2026-10-22 20:00 UTCEG score recompute
  16. 2026-10-22 20:00 UTCVendor advisory
  17. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  18. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  19. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  20. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  21. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  22. 2026-10-18 03:25 UTCEG score recompute
  23. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  24. 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  25. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 27th percentile
Show 68 more
  1. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  2. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  3. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  4. 2026-10-12 15:50 UTCEG score recompute
  5. 2026-10-11 22:13 UTCVendor advisory
  6. 2026-10-11 19:34 UTCEG score recompute
  7. 2026-10-11 16:49 UTCEG score recompute
  8. 2026-10-11 14:11 UTCEG score recompute
  9. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  10. 2026-10-10 20:53 UTCEG score recompute
  11. 2026-10-10 20:53 UTCVendor advisory
  12. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  13. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  14. 2026-10-09 19:33 UTCVendor advisory
  15. 2026-10-08 18:13 UTCEG score recompute
  16. 2026-10-08 18:13 UTCVendor advisory
  17. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  18. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  19. 2026-10-07 14:31 UTCEG score recompute
  20. 2026-10-07 14:31 UTCVendor advisory
  21. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  22. 2026-10-06 12:51 UTCEG score recompute
  23. 2026-10-06 12:51 UTCVendor advisory
  24. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  25. 2026-10-05 11:32 UTCEG score recompute
  26. 2026-10-05 11:32 UTCVendor advisory
  27. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  28. 2026-10-04 10:10 UTCEG score recompute
  29. 2026-10-04 10:10 UTCVendor advisory
  30. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  31. 2026-10-03 08:51 UTCEG score recompute
  32. 2026-10-03 08:51 UTCVendor advisory
  33. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  34. 2026-10-02 07:24 UTCEG score recompute
  35. 2026-10-02 07:24 UTCVendor advisory
  36. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  37. 2026-10-01 06:04 UTCEG score recompute
  38. 2026-10-01 06:04 UTCVendor advisory
  39. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  40. 2026-09-30 04:45 UTCEG score recompute
  41. 2026-09-30 04:45 UTCVendor advisory
  42. 2026-09-29 03:06 UTCEG score recompute
  43. 2026-09-29 03:06 UTCVendor advisory
  44. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  45. 2026-09-28 01:46 UTCEG score recompute
  46. 2026-09-28 01:46 UTCVendor advisory
  47. 2026-09-27 00:19 UTCEG score recompute
  48. 2026-09-27 00:19 UTCVendor advisory
  49. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 26th percentile
  50. 2026-09-25 22:56 UTCVendor advisory
  51. 2026-09-24 21:35 UTCEG score recompute
  52. 2026-09-24 21:35 UTCVendor advisory
  53. 2026-09-24 01:10 UTCEG score recompute
  54. 2026-09-24 01:10 UTCVendor advisory
  55. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  56. 2026-09-22 23:51 UTCEG score recompute
  57. 2026-09-22 23:51 UTCVendor advisory
  58. 2026-09-21 22:32 UTCEG score recompute
  59. 2026-09-21 22:32 UTCVendor advisory
  60. 2026-09-20 21:12 UTCEG score recompute
  61. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  62. 2026-09-19 19:52 UTCEG score recompute
  63. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  64. 2026-09-18 18:32 UTCEG score recompute
  65. 2026-09-18 18:08 UTCEG score recompute
  66. 2026-09-16 15:20 UTCEG score recompute
  67. 2026-09-16 14:26 UTCEG score recomputeFirst assessed: 5.3 MEDIUM
  68. 2026-09-16 14:25 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-61709?
CVE-2026-61709 is a medium-severity vulnerability; its CVE record was published on September 16, 2026. OpenFGA is an authorization and permission engine built for developers. Prior to 1.18.1, the ListUsers API could return a user that should have been excluded when an authorization relation used an intersection containing a base but not excluded operand, the base was granted through a type-bound…
When was the CVE record for CVE-2026-61709 published?
The CVE record for CVE-2026-61709 was published on September 16, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of September 24, 2026; the record at its source may have been updated since.
Is CVE-2026-61709 actively exploited?
CVE-2026-61709 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (28th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-61709?
CVE-2026-61709 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-61709?
A fix for CVE-2026-61709 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-61709 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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