CVE-2026-1961

HIGHNVD 8.88.8
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 1.9% (79th percentile of EPSS-scored CVEs). GitHub Security Advisory CVSS 8.0 is lower than this score; a lower GitHub score revises it only when its advisory is newer than the CVE record's last change, and this advisory (published 2026-03-26) is not newer than that change (2026-10-20), so it does not.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 4 sources updated this weekElevated

Also known asEUVD-2026-16167 (ENISA EUVD) · GHSA-fh2w-2c26-vpg5 (GitHub Security Advisories)Source: ENISA EUVD

8.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 1.9%CVSS: 8.8Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

A flaw was found in Foreman. A remote attacker could exploit a command injection vulnerability in Foreman's WebSocket proxy implementation. This vulnerability arises from the system's use of unsanitized hostname values from compute resource providers when constructing shell commands. By operating a malicious compute resource server, an attacker could achieve remote code execution on the Foreman server when a user accesses VM VNC console functionality. This could lead to the compromise of sensitive credentials and the entire managed infrastructure.

CVSS v3
8.8
EG Score
8.8HIGHmedium confidence
EG Risk
56
EG 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)
Severity88% × 45%
Impact severity (EG Severity): CVSS 8.8 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, Track* at medium and Attend at high mission impact.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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
1.9%
EPSS %ILE
79th
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 (8.8): severity, escalated by confirmed exploitation. This CVE's 8.8 is its impact severity (EG Severity), not escalated.

EG Severity
8.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
1.9% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-27). 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, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 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 low, Track* at medium and Attend at high mission impact.

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 no (CISA Vulnrichment) · Technical impact total (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; 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 total (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 26, 2026

Last Modified

October 20, 2026

Advisory Details (6)

Auto-updated Jun 10, 2026
Patch available. Sources: redhat.
Web page

oss-security - CVE-2026-1961: Foreman: Remote Code Execution via command injection in WebSocket proxy

http://www.openwall.com/lists/oss-security/2026/03/27/3
Red HatMentions a patch (unverified)

2437036 – (CVE-2026-1961) CVE-2026-1961 forman: Foreman: Remote Code Execution via command injection in WebSocket proxy

https://bugzilla.redhat.com/show_bug.cgi?id=2437036
Red HatMentions a patch (unverified)

cve-details

https://access.redhat.com/security/cve/CVE-2026-1961
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:5971
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:5970
Red HatMentions a patch (unverified)
https://access.redhat.com/errata/RHSA-2026:5968

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatforeman-0:3.16.0.12-1.el9sat2026-03-26redhat
redhatforeman-0:3.12.0.14-1.el9sat2026-03-26redhat
redhatyggdrasil-worker-forwarder-0:0.0.3-4.el9sat2026-03-26redhat

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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 48× 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 100 of 272 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. None are among the latest 100 rows. The 172 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 16:44 UTCEPSS rescoreEPSS 1.9% · 79th percentile
  2. 2026-11-01 16:34 UTCEPSS rescoreEPSS 1.9% · 79th percentile
  3. 2026-10-31 16:32 UTCEPSS rescoreEPSS 1.9% · 79th percentile
  4. 2026-10-30 16:34 UTCEPSS rescoreEPSS 1.9% · 79th percentile
  5. 2026-10-29 16:32 UTCEPSS rescoreEPSS 1.9% · 79th percentile
  6. 2026-10-28 16:31 UTCEPSS rescoreEPSS 1.9% · 79th percentile
  7. 2026-10-28 06:38 UTCEG score recompute
  8. 2026-10-28 06:38 UTCVendor advisory
  9. 2026-10-28 06:38 UTCGHSA enrichmentGHSA-fh2w-2c26-vpg5 · GitHub severity HIGH · GitHub CVSS 8.0
  10. 2026-10-27 16:31 UTCEPSS rescoreEPSS 1.9% · 79th percentile
  11. 2026-10-26 16:31 UTCEPSS rescoreEPSS 1.9% · 79th percentile
  12. 2026-10-25 16:32 UTCEPSS rescoreEPSS 1.9% · 79th percentile
  13. 2026-10-25 14:44 UTCEG score recompute
  14. 2026-10-24 16:32 UTCEPSS rescoreEPSS 1.9% · 79th percentile
  15. 2026-10-23 16:31 UTCEPSS rescoreEPSS 1.9% · 79th percentile
  16. 2026-10-22 16:34 UTCEPSS rescoreEPSS 1.9% · 79th percentile
  17. 2026-10-21 16:32 UTCEPSS rescoreEPSS 1.9% · 79th percentile
  18. 2026-10-20 19:17 UTCEG score recompute
  19. 2026-10-20 19:17 UTCVendor advisory
  20. 2026-10-20 19:17 UTCGHSA enrichmentGHSA-fh2w-2c26-vpg5 · GitHub severity HIGH · GitHub CVSS 8.0
  21. 2026-10-20 16:32 UTCEPSS rescoreEPSS 1.4% · 72nd percentile
  22. 2026-10-20 16:08 UTCEG score recompute▲ 0.80
  23. 2026-10-20 16:08 UTCVendor advisory
  24. 2026-10-20 16:08 UTCGHSA enrichmentGHSA-fh2w-2c26-vpg5 · GitHub severity HIGH · GitHub CVSS 8.0
  25. 2026-10-20 16:05 UTCNVD updateCVSS v3 → 8.8
Show 75 more
  1. 2026-10-19 16:31 UTCEPSS rescoreEPSS 1.4% · 72nd percentile
  2. 2026-10-18 16:31 UTCEPSS rescoreEPSS 1.4% · 72nd percentile
  3. 2026-10-18 03:58 UTCEG score recompute
  4. 2026-10-17 17:41 UTCEG score recompute
  5. 2026-10-17 17:41 UTCVendor advisory
  6. 2026-10-17 17:41 UTCGHSA enrichmentGHSA-fh2w-2c26-vpg5 · GitHub severity HIGH · GitHub CVSS 8.0
  7. 2026-10-17 16:33 UTCEPSS rescoreEPSS 1.4% · 72nd percentile
  8. 2026-10-16 16:41 UTCEPSS rescoreEPSS 1.4% · 72nd percentile
  9. 2026-10-15 16:31 UTCEPSS rescoreEPSS 1.4% · 72nd percentile
  10. 2026-10-14 16:32 UTCEPSS rescoreEPSS 1.4% · 72nd percentile
  11. 2026-10-13 16:33 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  12. 2026-10-12 16:33 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  13. 2026-10-12 16:25 UTCEG score recompute
  14. 2026-10-11 20:06 UTCEG score recompute
  15. 2026-10-11 17:19 UTCEG score recompute
  16. 2026-10-11 14:51 UTCEG score recompute
  17. 2026-10-11 13:48 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  18. 2026-10-10 19:59 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  19. 2026-10-09 20:06 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  20. 2026-10-08 17:11 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  21. 2026-10-07 23:47 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  22. 2026-10-06 15:17 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  23. 2026-10-05 17:42 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  24. 2026-10-01 19:49 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  25. 2026-09-30 15:03 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  26. 2026-09-29 15:21 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  27. 2026-09-27 13:47 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  28. 2026-09-26 15:58 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  29. 2026-09-26 00:26 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  30. 2026-09-24 14:03 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  31. 2026-09-20 20:15 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  32. 2026-09-18 19:27 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  33. 2026-09-16 14:07 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  34. 2026-09-16 05:14 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  35. 2026-09-13 16:46 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  36. 2026-09-12 15:00 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  37. 2026-09-11 14:52 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  38. 2026-09-11 09:36 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  39. 2026-09-10 09:34 UTCEPSS rescoreEPSS 1.4% · 71st percentile
  40. 2026-09-08 22:00 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  41. 2026-09-07 16:01 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  42. 2026-09-06 13:47 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  43. 2026-09-04 05:06 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  44. 2026-09-02 14:11 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  45. 2026-09-01 13:53 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  46. 2026-09-01 04:39 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  47. 2026-08-30 19:17 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  48. 2026-08-30 01:22 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  49. 2026-08-28 21:41 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  50. 2026-08-27 14:25 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  51. 2026-08-26 14:46 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  52. 2026-08-25 13:48 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  53. 2026-08-23 00:19 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  54. 2026-08-21 23:49 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  55. 2026-08-20 22:55 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  56. 2026-08-19 17:03 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  57. 2026-08-18 13:48 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  58. 2026-08-17 13:47 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  59. 2026-08-16 14:56 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  60. 2026-08-16 10:09 UTCEG score recompute
  61. 2026-08-16 10:09 UTCVendor advisory
  62. 2026-08-16 10:09 UTCGHSA enrichmentGHSA-fh2w-2c26-vpg5 · GitHub severity HIGH · GitHub CVSS 8.0
  63. 2026-08-16 02:14 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  64. 2026-08-15 01:30 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  65. 2026-08-14 19:27 UTCVendor advisory
  66. 2026-08-14 19:27 UTCGHSA enrichmentGHSA-fh2w-2c26-vpg5 · GitHub severity HIGH · GitHub CVSS 8.0
  67. 2026-08-14 06:27 UTCEG score recompute
  68. 2026-08-14 06:27 UTCVendor advisory
  69. 2026-08-14 06:27 UTCGHSA enrichmentGHSA-fh2w-2c26-vpg5 · GitHub severity HIGH · GitHub CVSS 8.0
  70. 2026-08-13 22:00 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  71. 2026-08-12 20:44 UTCEG score recompute
  72. 2026-08-12 20:44 UTCVendor advisory
  73. 2026-08-12 20:44 UTCGHSA enrichmentGHSA-fh2w-2c26-vpg5 · GitHub severity HIGH · GitHub CVSS 8.0
  74. 2026-08-12 13:50 UTCEPSS rescoreEPSS 1.4% · 70th percentile
  75. 2026-08-11 20:50 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-1961?
CVE-2026-1961 is a high-severity vulnerability; its CVE record was published on March 26, 2026. A flaw was found in Foreman. A remote attacker could exploit a command injection vulnerability in Foreman's WebSocket proxy implementation. This vulnerability arises from the system's use of unsanitized hostname values from compute resource providers when constructing shell commands. By operating a…
When was CVE-2026-1961 made public?
CVE-2026-1961 was made public on March 26, 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 March 26, 2026. EchelonGraph's copy of the record carries a last-modified date of October 20, 2026; the record at its source may have been updated since.
Is CVE-2026-1961 actively exploited?
CVE-2026-1961 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.9% probability of exploitation in the next 30 days (79th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-1961?
CVE-2026-1961 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-1961?
A fix for CVE-2026-1961 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-1961 are linked in the Vendor Advisories panel on this page.

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