CVE-2026-59298

LOWNVD 3.53.5
EchelonGraph scoreMEDIUM confidence

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

This low-severity CVE scores 3.5 under NVD CVSS v3. EPSS exploit probability: 0.2% (12th percentile of EPSS-scored CVEs). GitHub Security Advisory CVSS 3.1 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 2026-08-27) is not newer than that change (2026-09-02), so it does not.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this week
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: 0.2%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).

Potential for improper filtering of HTTP headers in Spring Cloud Function. Spring Cloud Function 5.0.0 - 5.0.3 Spring Cloud Function 4.3.0 - 4.3.4 Spring Cloud Function 4.2.0 - 4.2.7 Spring Cloud Function 3.2.16 and earlier

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.
Exploitation0.2% × 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 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
0.2%
EPSS %ILE
12th
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

August 27, 2026

Last Modified

September 2, 2026

References (1)

Vendor Advisories for CVE-2026-59298(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 13× 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.

  1. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  2. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  3. 2026-10-12 15:52 UTCEG score recompute
  4. 2026-10-11 19:36 UTCEG score recompute
  5. 2026-10-11 16:51 UTCEG score recompute
  6. 2026-10-11 14:14 UTCEG score recompute
  7. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  8. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  9. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  10. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  11. 2026-10-08 01:17 UTCEG score recompute
  12. 2026-10-08 01:17 UTCGHSA enrichmentGHSA-mwgg-hfwg-mqmx · GitHub severity LOW · GitHub CVSS 3.1
  13. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  14. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  15. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  16. 2026-10-05 01:33 UTCEG score recompute
  17. 2026-10-05 01:33 UTCGHSA enrichmentGHSA-mwgg-hfwg-mqmx · GitHub severity LOW · GitHub CVSS 3.1
  18. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  19. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  20. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  21. 2026-10-02 07:54 UTCEG score recompute
  22. 2026-10-02 07:54 UTCGHSA enrichmentGHSA-mwgg-hfwg-mqmx · GitHub severity LOW · GitHub CVSS 3.1
  23. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  24. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  25. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.2% · 11th percentile
Show 58 more
  1. 2026-09-29 14:14 UTCEG score recompute
  2. 2026-09-29 14:14 UTCGHSA enrichmentGHSA-mwgg-hfwg-mqmx · GitHub severity LOW · GitHub CVSS 3.1
  3. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  4. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  5. 2026-09-26 19:19 UTCEG score recompute
  6. 2026-09-26 19:19 UTCGHSA enrichmentGHSA-mwgg-hfwg-mqmx · GitHub severity LOW · GitHub CVSS 3.1
  7. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  8. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.2% · 11th percentile
  9. 2026-09-24 01:12 UTCEG score recompute
  10. 2026-09-24 01:12 UTCGHSA enrichmentGHSA-mwgg-hfwg-mqmx · GitHub severity LOW · GitHub CVSS 3.1
  11. 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  12. 2026-09-21 07:34 UTCEG score recompute
  13. 2026-09-21 07:34 UTCGHSA enrichmentGHSA-mwgg-hfwg-mqmx · GitHub severity LOW · GitHub CVSS 3.1
  14. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  15. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  16. 2026-09-18 13:42 UTCEG score recompute
  17. 2026-09-18 13:42 UTCGHSA enrichmentGHSA-mwgg-hfwg-mqmx · GitHub severity LOW · GitHub CVSS 3.1
  18. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  19. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  20. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  21. 2026-09-15 20:02 UTCEG score recompute
  22. 2026-09-15 20:02 UTCGHSA enrichmentGHSA-mwgg-hfwg-mqmx · GitHub severity LOW · GitHub CVSS 3.1
  23. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  24. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  25. 2026-09-13 02:24 UTCEG score recompute
  26. 2026-09-13 02:24 UTCGHSA enrichmentGHSA-mwgg-hfwg-mqmx · GitHub severity LOW · GitHub CVSS 3.1
  27. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  28. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  29. 2026-09-10 08:45 UTCEG score recompute
  30. 2026-09-10 08:44 UTCGHSA enrichmentGHSA-mwgg-hfwg-mqmx · GitHub severity LOW · GitHub CVSS 3.1
  31. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  32. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  33. 2026-09-07 15:05 UTCEG score recompute
  34. 2026-09-07 15:05 UTCGHSA enrichmentGHSA-mwgg-hfwg-mqmx · GitHub severity LOW · GitHub CVSS 3.1
  35. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  36. 2026-09-04 18:45 UTCEG score recompute
  37. 2026-09-04 18:45 UTCGHSA enrichmentGHSA-mwgg-hfwg-mqmx · GitHub severity LOW · GitHub CVSS 3.1
  38. 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  39. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  40. 2026-09-02 01:06 UTCEG score recompute▲ 0.40
  41. 2026-09-02 01:05 UTCGHSA enrichmentGHSA-mwgg-hfwg-mqmx · GitHub severity LOW · GitHub CVSS 3.1
  42. 2026-09-02 01:03 UTCNVD updateCVSS v3 → 3.5
  43. 2026-09-01 15:58 UTCEG score recompute
  44. 2026-09-01 15:58 UTCGHSA enrichmentGHSA-mwgg-hfwg-mqmx · GitHub severity LOW · GitHub CVSS 3.1
  45. 2026-09-01 15:13 UTCEG score recompute
  46. 2026-09-01 15:13 UTCGHSA enrichmentGHSA-mwgg-hfwg-mqmx · GitHub severity LOW · GitHub CVSS 3.1
  47. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  48. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  49. 2026-08-31 12:44 UTCEG score recompute
  50. 2026-08-31 12:44 UTCGHSA enrichmentGHSA-mwgg-hfwg-mqmx · GitHub severity LOW · GitHub CVSS 3.1
  51. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  52. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  53. 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  54. 2026-08-28 19:00 UTCEG score recompute
  55. 2026-08-28 19:00 UTCGHSA enrichmentGHSA-mwgg-hfwg-mqmx · GitHub severity LOW · GitHub CVSS 3.1
  56. 2026-08-27 20:26 UTCEG score recompute
  57. 2026-08-27 20:16 UTCEG score recomputeFirst assessed: 3.1 LOW
  58. 2026-08-27 20:13 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-59298?
CVE-2026-59298 is a low-severity vulnerability; its CVE record was published on August 27, 2026. Potential for improper filtering of HTTP headers in Spring Cloud Function. Spring Cloud Function 5.0.0 - 5.0.3 Spring Cloud Function 4.3.0 - 4.3.4 Spring Cloud Function 4.2.0 - 4.2.7 Spring Cloud Function 3.2.16 and earlier
When was the CVE record for CVE-2026-59298 published?
The CVE record for CVE-2026-59298 was published on August 27, 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 2, 2026; the record at its source may have been updated since.
Is CVE-2026-59298 actively exploited?
CVE-2026-59298 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (12th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-59298?
CVE-2026-59298 has a CVSS v3 base score of 3.5 (NVD).
How do I remediate CVE-2026-59298?
A fix for CVE-2026-59298 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-2026-59298 are linked in the Vendor Advisories panel on this page.

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