CVE-2026-81658

MEDIUMPre-NVD 6.56.5
EchelonGraph scoreMEDIUM confidence

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

Score 6.5 from GitHub Security Advisory (severity: MODERATE) published 2026-08-27. A secondary CVSS source baseline 6.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source

Also known asEUVD-2026-66996 (ENISA EUVD) · GHSA-p76g-9c4w-2889 (GitHub Security Advisories)Source: ENISA EUVD

6.5EG
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: 6.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in Foreman. The template revision endpoint does not enforce object-level authorization when retrieving an audited template revision. An authenticated, low privileged user with a template-related permission, such as view_ptables, can obtain historical template contents belonging to another organization or location by supplying the corresponding audit ID. This can result in unauthorized disclosure of historical template contents, which may contain sensitive configuration information, credentials, or other secrets. The REST API revision endpoints correctly restrict this lookup.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
29
EG Risk 29/100

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)
Severity65% × 45%
Impact severity (EG Severity): CVSS 6.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.3% × 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
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 (6.5): severity, escalated by confirmed exploitation. This CVE's 6.5 is its impact severity (EG Severity), not escalated.

EG Severity
6.5 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. 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

August 27, 2026

Last Modified

November 13, 2026

Advisory Details (2)

Auto-updated Aug 27, 2026
Patch available. Sources: redhat.
Red Hat

2524899 – (CVE-2026-81658) CVE-2026-81658 foreman: Cross-tenant disclosure of template revisions via unauthorized audit lookup

https://bugzilla.redhat.com/show_bug.cgi?id=2524899
Red HatMentions a patch (unverified)

CVE-2026-81658 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-81658

Vendor Advisories for CVE-2026-81658(4)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 34× 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 its CVE.org record (CNA or CISA ADP). 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 171 rows 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. None are among the latest 100 rows. The 71 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:57 UTCEPSS rescoreEPSS 0.4% · 36th percentile
  2. 2026-11-13 02:28 UTCEchelonGraph re-scored
  3. 2026-11-13 02:28 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub severity MODERATE · GitHub CVSS 6.5
  4. 2026-11-13 00:37 UTCEchelonGraph re-scored
  5. 2026-11-13 00:37 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub severity MODERATE · GitHub CVSS 6.5
  6. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  7. 2026-11-11 16:40 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  8. 2026-11-10 16:45 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  9. 2026-11-09 16:36 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  10. 2026-11-08 16:41 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  11. 2026-11-07 19:17 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub severity MODERATE · GitHub CVSS 6.5
  12. 2026-11-07 19:17 UTCEchelonGraph re-scored
  13. 2026-11-07 16:40 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  14. 2026-11-06 16:39 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  15. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  16. 2026-11-04 16:37 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  17. 2026-11-03 16:49 UTCEPSS rescoreEPSS 0.3% · 28th percentile
  18. 2026-11-02 16:46 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  19. 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  20. 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  21. 2026-10-30 16:35 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  22. 2026-10-29 16:34 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  23. 2026-10-28 16:33 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  24. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  25. 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.3% · 27th percentile
Show 75 more
  1. 2026-10-25 16:34 UTCEPSS rescoreEPSS 0.3% · 27th percentile
  2. 2026-10-25 13:58 UTCEchelonGraph re-scored
  3. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  4. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  5. 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  6. 2026-10-22 13:48 UTCEchelonGraph re-scored
  7. 2026-10-22 13:47 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5
  8. 2026-10-21 16:34 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  9. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  10. 2026-10-19 16:33 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  11. 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  12. 2026-10-18 03:09 UTCEchelonGraph re-scored
  13. 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  14. 2026-10-16 16:44 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  15. 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  16. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  17. 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  18. 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.3% · 26th percentile
  19. 2026-10-12 14:56 UTCEchelonGraph re-scored
  20. 2026-10-11 19:20 UTCEchelonGraph re-scored
  21. 2026-10-11 16:37 UTCEchelonGraph re-scored
  22. 2026-10-11 13:54 UTCEchelonGraph re-scored
  23. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  24. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  25. 2026-10-10 05:20 UTCEchelonGraph re-scored
  26. 2026-10-10 05:20 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5
  27. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  28. 2026-10-09 03:09 UTCEchelonGraph re-scored
  29. 2026-10-09 03:09 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5
  30. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  31. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  32. 2026-10-07 16:00 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5
  33. 2026-10-07 09:54 UTCEchelonGraph re-scored
  34. 2026-10-07 09:54 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5
  35. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  36. 2026-10-06 09:07 UTCEchelonGraph re-scored
  37. 2026-10-06 09:07 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5
  38. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  39. 2026-10-05 08:27 UTCEchelonGraph re-scored
  40. 2026-10-05 08:27 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5
  41. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  42. 2026-10-04 07:47 UTCEchelonGraph re-scored
  43. 2026-10-04 07:47 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5
  44. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  45. 2026-10-03 07:07 UTCEchelonGraph re-scored
  46. 2026-10-03 07:07 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5
  47. 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  48. 2026-10-02 06:26 UTCEchelonGraph re-scored
  49. 2026-10-02 06:26 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5
  50. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  51. 2026-10-01 05:46 UTCEchelonGraph re-scored
  52. 2026-10-01 05:46 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5
  53. 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  54. 2026-09-30 05:06 UTCEchelonGraph re-scored
  55. 2026-09-30 05:06 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5
  56. 2026-09-28 21:17 UTCEchelonGraph re-scored
  57. 2026-09-28 21:17 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5
  58. 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  59. 2026-09-27 19:30 UTCEchelonGraph re-scored
  60. 2026-09-27 19:30 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5
  61. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  62. 2026-09-26 18:50 UTCEchelonGraph re-scored
  63. 2026-09-26 18:50 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5
  64. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  65. 2026-09-25 14:14 UTCEchelonGraph re-scored
  66. 2026-09-25 14:13 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5
  67. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.4% · 27th percentile
  68. 2026-09-24 13:23 UTCEchelonGraph re-scored
  69. 2026-09-24 13:23 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5
  70. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  71. 2026-09-23 12:43 UTCEchelonGraph re-scored
  72. 2026-09-23 12:43 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5
  73. 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  74. 2026-09-22 12:03 UTCEchelonGraph re-scored
  75. 2026-09-22 12:03 UTCGHSA enrichmentGHSA-p76g-9c4w-2889 · GitHub CVSS 6.5

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Frequently asked(5)

What is CVE-2026-81658?
CVE-2026-81658 is a medium-severity vulnerability; its CVE record was published on August 27, 2026. A flaw was found in Foreman. The template revision endpoint does not enforce object-level authorization when retrieving an audited template revision. An authenticated, low privileged user with a template-related permission, such as view_ptables, can obtain historical template contents belonging to…
When was CVE-2026-81658 made public?
CVE-2026-81658 was made public on August 27, 2026: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on August 27, 2026. EchelonGraph's copy of the record carries a last-modified date of November 13, 2026; the record at its source may have been updated since.
Is CVE-2026-81658 actively exploited?
CVE-2026-81658 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (36th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-81658?
CVE-2026-81658 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-81658?
A fix for CVE-2026-81658 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-81658 are linked in the Vendor Advisories panel on this page.

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