CVE-2026-56538

LOWPre-NVD 3.53.5
EchelonGraph scoreMEDIUM confidence

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

Score 3.5 from GitHub Security Advisory (severity: LOW) published 2026-07-27. A secondary CVSS source baseline 3.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
3.5EG
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: 0.3%CVSS: 3.5Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

An endpoint in HCL Connections is vulnerable to information disclosure. In certain scenarios this might lead to disclosing sensitive information to unauthorized users.

CVSS v3
3.5
EG Score
3.5LOWmedium confidence
EG Risk
16
EG Risk 16/100

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed (value × EchelonGraph’s weight)
Severity35% × 45%
The EG Score, 3.5 of 10.
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 referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
0.3%
EPSS %ILE
17th
KEV
Not listed

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

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

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.

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

July 27, 2026

Last Modified

August 20, 2026

References (1)

Vendor Advisories for CVE-2026-56538(1)

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 11× in last 7d / 44× 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 128 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 28 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  3. 2026-10-12 15:54 UTCEG score recompute
  4. 2026-10-11 19:38 UTCEG score recompute
  5. 2026-10-11 16:53 UTCEG score recompute
  6. 2026-10-11 14:16 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  10. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  11. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  12. 2026-10-07 04:15 UTCEG score recompute
  13. 2026-10-07 04:15 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  14. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  15. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  16. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  17. 2026-10-04 07:21 UTCEG score recompute
  18. 2026-10-04 07:21 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  19. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  20. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  21. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  22. 2026-10-01 03:54 UTCEG score recompute
  23. 2026-10-01 03:54 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  24. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  25. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.3% · 17th percentile
Show 75 more
  1. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  2. 2026-09-28 03:59 UTCEG score recompute
  3. 2026-09-28 03:59 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  4. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  5. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  6. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  7. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  8. 2026-09-22 21:50 UTCEG score recompute
  9. 2026-09-22 21:50 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  10. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  11. 2026-09-19 08:22 UTCEG score recompute
  12. 2026-09-19 08:22 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  13. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  14. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  15. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  16. 2026-09-16 11:54 UTCEG score recompute
  17. 2026-09-16 11:54 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  18. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  19. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  20. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  21. 2026-09-13 15:43 UTCEG score recompute
  22. 2026-09-13 15:43 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  23. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  24. 2026-09-10 20:49 UTCEG score recompute
  25. 2026-09-10 20:49 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  26. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  27. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  28. 2026-09-07 21:04 UTCEG score recompute
  29. 2026-09-07 21:04 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  30. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  31. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  32. 2026-09-04 17:55 UTCEG score recompute
  33. 2026-09-04 17:55 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  34. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  35. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  36. 2026-09-01 23:00 UTCEG score recompute
  37. 2026-09-01 23:00 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  38. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  39. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  40. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  41. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  42. 2026-08-29 23:55 UTCEG score recompute
  43. 2026-08-29 23:55 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  44. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  45. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  46. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  47. 2026-08-26 02:53 UTCEG score recompute
  48. 2026-08-26 02:53 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  49. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  50. 2026-08-23 07:57 UTCEG score recompute
  51. 2026-08-23 07:57 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  52. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  53. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  54. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  55. 2026-08-20 13:03 UTCEG score recompute
  56. 2026-08-20 13:03 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  57. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  58. 2026-08-19 08:33 UTCEG score recompute
  59. 2026-08-19 08:33 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  60. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  61. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  62. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  63. 2026-08-16 13:37 UTCEG score recompute
  64. 2026-08-16 13:37 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  65. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  66. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  67. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  68. 2026-08-13 18:43 UTCEG score recompute
  69. 2026-08-13 18:43 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  70. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  71. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  72. 2026-08-10 23:50 UTCEG score recompute
  73. 2026-08-10 23:50 UTCGHSA enrichmentGHSA-2ggm-9493-rh4g · GitHub severity LOW · GitHub CVSS 3.5
  74. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  75. 2026-08-08 16:37 UTCEPSS rescoreEPSS 0.2% · 5th percentile

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-56538?
CVE-2026-56538 is a low-severity vulnerability; its CVE record was published on July 27, 2026. An endpoint in HCL Connections is vulnerable to information disclosure. In certain scenarios this might lead to disclosing sensitive information to unauthorized users.
When was CVE-2026-56538 made public?
CVE-2026-56538 was made public on July 27, 2026: that is the date its CVE record's CNA, HCL Software, gives for when the vulnerability was made public. The CVE record itself was published on July 27, 2026. EchelonGraph's copy of the record carries a last-modified date of August 20, 2026; the record at its source may have been updated since.
Is CVE-2026-56538 actively exploited?
CVE-2026-56538 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (17th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-56538?
CVE-2026-56538 has a CVSS base score of 3.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-56538?
A fix for CVE-2026-56538 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation. The vendor advisories EchelonGraph has for CVE-2026-56538 are linked in the Vendor Advisories panel on this page.

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