CVE-2026-45694

MEDIUMPre-NVD 5.45.4
EchelonGraph scoreMEDIUM confidence

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

Score 5.4 from GitHub Security Advisory (severity: MODERATE) published 2026-08-12. A secondary CVSS source baseline 5.4; 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-2026-66772 (ENISA EUVD) · GHSA-jmqm-f8q4-v7wx (GitHub Security Advisories)Source: ENISA EUVD

5.4EG
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: 0.2%CVSS: 5.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

LibreNMS is a network monitoring system. In versions up to and including 26.4.0, the Proxmox application view is vulnerable to reflected cross-site scripting through the user-supplied instance and vmid GET parameters, which are reflected into the page title without adequate encoding. The parameters are placed into the page title with only strip_tags applied, and the title is then written into an inline document.title assignment through string interpolation, so a single quote terminates the JavaScript string and the remaining input runs as script. An attacker who lures an authenticated user into following a crafted link can execute script in that user's session, enabling actions such as theft of session data. This issue is fixed in version 26.5.0.

CVSS v3
5.4
EG Score
5.4MEDIUMmedium 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)
Severity54% × 45%
Impact severity (EG Severity): CVSS 5.4 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 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
0.2%
EPSS %ILE
14th
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 (5.4): severity, escalated by confirmed exploitation. This CVE's 5.4 is its impact severity (EG Severity), not escalated.

EG Severity
5.4 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% 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

August 12, 2026

Last Modified

September 9, 2026

Advisory Details (2)

Auto-updated Aug 26, 2026
Patch available. Sources: github, github_commit.
GitHub commit

commit 0be1bfd7746c (librenms/librenms)

Fix landed in librenms/librenms commit 0be1bfd7746c — awaiting tagged release

https://github.com/librenms/librenms/commit/0be1bfd7746cea26bf7da40e82b70f75b724d0f8
GitHub advisoryMentions a patch (unverified)

Reflected XSS via Proxmox instance/vmid GET parameters injected into document.title JavaScript assignment · Advisory · librenms/librenms · GitHub

https://github.com/librenms/librenms/security/advisories/GHSA-jmqm-f8q4-v7wx

Vendor Advisories for CVE-2026-45694(1)

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

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
composerlibrenms/librenms @ 26.5.0 (fixes <= 26.4.0)—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)
Packagist(1)
PackageVulnerable rangeFix by version rangeDependents
librenms/librenms1.19 ... 26.4.1 (154 versions)
  • every version up to 26.5.0: fixed in 26.5.0
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 42× 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 16:34 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  2. 2026-11-01 07:48 UTCGHSA enrichmentGHSA-jmqm-f8q4-v7wx · GitHub severity MODERATE · GitHub CVSS 5.4
  3. 2026-11-01 07:48 UTCEG score recompute
  4. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  5. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  6. 2026-10-30 15:25 UTCOSV refresh
  7. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  8. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  9. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  10. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  11. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  12. 2026-10-25 14:26 UTCEG score recompute
  13. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  14. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  15. 2026-10-22 23:34 UTCEG score recompute
  16. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  17. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  18. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  19. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  20. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  21. 2026-10-18 03:37 UTCEG score recompute
  22. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  23. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  24. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  25. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.2% · 13th percentile
Show 71 more
  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  3. 2026-10-12 16:04 UTCEG score recompute
  4. 2026-10-11 19:46 UTCEG score recompute
  5. 2026-10-11 17:00 UTCEG score recompute
  6. 2026-10-11 14:26 UTCEG score recompute
  7. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  10. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  12. 2026-10-06 17:28 UTCEG score recompute
  13. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  14. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  15. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  16. 2026-10-03 20:00 UTCEG score recompute
  17. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  18. 2026-10-02 08:21 UTCEG score recompute
  19. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  20. 2026-09-30 21:56 UTCEG score recompute
  21. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  22. 2026-09-28 09:37 UTCEG score recompute
  23. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  24. 2026-09-27 09:56 UTCEG score recompute
  25. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  26. 2026-09-25 03:42 UTCEG score recompute
  27. 2026-09-23 23:40 UTCEG score recompute
  28. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  29. 2026-09-22 23:59 UTCEG score recompute
  30. 2026-09-22 00:18 UTCEG score recompute
  31. 2026-09-21 00:17 UTCEG score recompute
  32. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  33. 2026-09-19 23:55 UTCEG score recompute
  34. 2026-09-19 00:14 UTCEG score recompute
  35. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  36. 2026-09-18 00:32 UTCEG score recompute
  37. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  38. 2026-09-17 00:22 UTCEG score recompute
  39. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  40. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  41. 2026-09-15 22:00 UTCEG score recompute
  42. 2026-09-13 20:13 UTCEG score recompute
  43. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  44. 2026-09-12 20:32 UTCEG score recompute
  45. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  46. 2026-09-11 20:51 UTCEG score recompute
  47. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  48. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  49. 2026-09-10 21:09 UTCEG score recompute
  50. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  51. 2026-09-08 01:06 UTCEG score recompute
  52. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  53. 2026-09-07 01:24 UTCEG score recompute
  54. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  55. 2026-09-06 01:23 UTCEG score recompute
  56. 2026-09-05 01:26 UTCEG score recompute
  57. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  58. 2026-09-02 23:38 UTCEG score recompute
  59. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  60. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  61. 2026-09-01 11:45 UTCEG score recompute
  62. 2026-08-31 09:53 UTCEG score recompute
  63. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  64. 2026-08-30 08:24 UTCEG score recompute
  65. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  66. 2026-08-29 08:38 UTCEG score recompute
  67. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  68. 2026-08-27 17:24 UTCEG score recompute
  69. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.1% · 4th percentile
  70. 2026-08-26 22:24 UTCEG score recompute
  71. 2026-08-12 15:21 UTCEG score recomputeFirst assessed: 5.4 MEDIUM

Frequently asked(5)

What is CVE-2026-45694?
CVE-2026-45694 is a medium-severity vulnerability; its CVE record was published on August 12, 2026. LibreNMS is a network monitoring system. In versions up to and including 26.4.0, the Proxmox application view is vulnerable to reflected cross-site scripting through the user-supplied instance and vmid GET parameters, which are reflected into the page title without adequate encoding. The parameters…
When was the CVE record for CVE-2026-45694 published?
The CVE record for CVE-2026-45694 was published on August 12, 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 9, 2026; the record at its source may have been updated since.
Is CVE-2026-45694 actively exploited?
CVE-2026-45694 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (14th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-45694?
CVE-2026-45694 has a CVSS base score of 5.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-45694?
A fix for CVE-2026-45694 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-45694 are linked in the Vendor Advisories panel on this page.

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