CVE-2026-41455

HIGHPre-NVD 8.58.5
EchelonGraph scoreMEDIUM confidence

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

Score 8.5 from GitHub Security Advisory published 2026-04-23. A secondary CVSS source baseline 8.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-25118 (ENISA EUVD) · GHSA-qvhh-2f8h-hqgp (GitHub Security Advisories)Source: ENISA EUVD

8.5EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 8.5Exploit: 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).

WeKan before 8.35 contains a server-side request forgery vulnerability in webhook integration URL handling where the URL scheme field accepts any string without protocol restriction or destination validation. Attackers who can create or modify integrations can set webhook URLs to internal network addresses, causing the server to issue HTTP POST requests to attacker-controlled internal targets with full board event payloads, and can additionally exploit response handling to overwrite arbitrary comment text without authorization checks.

CVSS v3
8.5
EG Score
8.5HIGHmedium confidence
EG Risk
38
EG Risk 38/100

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)
Severity85% × 45%
Impact severity (EG Severity): CVSS 8.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.4% × 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
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 (8.5): severity, escalated by confirmed exploitation. This CVE's 8.5 is its impact severity (EG Severity), not escalated.

EG Severity
8.5 HIGHCVSS-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. 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: 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 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

April 22, 2026

Last Modified

July 14, 2026

Advisory Details (3)

Auto-updated May 3, 2026
Fix referenced — no release confirmed yet.
Web page

WeKan < 8.35 SSRF via Webhook URL | Advisories | VulnCheck

https://www.vulncheck.com/advisories/wekan-ssrf-via-webhook-url
Web page

Release v8.35 · wekan/wekan · GitHub

https://github.com/wekan/wekan/releases/tag/v8.35
Web page

Fix IntegrationBleed. · wekan/wekan@2cd702f · GitHub

https://github.com/wekan/wekan/commit/2cd702f48df2b8aef0e7381685f8e089986a18a4

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 40× 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 241 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 141 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  2. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  3. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  4. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  5. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  6. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  7. 2026-10-25 14:30 UTCEG score recompute
  8. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  9. 2026-10-24 14:04 UTCEG score recompute
  10. 2026-10-24 14:04 UTCGHSA enrichmentGHSA-qvhh-2f8h-hqgp · GitHub CVSS 8.5
  11. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  12. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  13. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  14. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  15. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  16. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  17. 2026-10-18 03:41 UTCEG score recompute
  18. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  19. 2026-10-17 14:36 UTCEG score recompute
  20. 2026-10-17 14:35 UTCGHSA enrichmentGHSA-qvhh-2f8h-hqgp · GitHub CVSS 8.5
  21. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  22. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  23. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  24. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  25. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 30th percentile
Show 75 more
  1. 2026-10-12 16:08 UTCEG score recompute
  2. 2026-10-11 19:50 UTCEG score recompute
  3. 2026-10-11 17:04 UTCEG score recompute
  4. 2026-10-11 14:30 UTCEG score recompute
  5. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  6. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  7. 2026-10-10 17:33 UTCOSV refresh
  8. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  9. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  10. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  11. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  12. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  13. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  14. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  15. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  16. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  17. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  18. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  19. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  20. 2026-09-21 04:49 UTCOSV refresh
  21. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  22. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  23. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  24. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  25. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  26. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  27. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  28. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  29. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  30. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  31. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  32. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  33. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  34. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  35. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  36. 2026-09-02 02:38 UTCOSV refresh
  37. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  38. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  39. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  40. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  41. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  42. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  43. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  44. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  45. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  46. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  47. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  48. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  49. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  50. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  51. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  52. 2026-08-16 05:56 UTCEG score recompute
  53. 2026-08-16 05:56 UTCGHSA enrichmentGHSA-qvhh-2f8h-hqgp · GitHub CVSS 8.5
  54. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  55. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  56. 2026-08-14 17:04 UTCGHSA enrichmentGHSA-qvhh-2f8h-hqgp · GitHub CVSS 8.5
  57. 2026-08-14 04:16 UTCEG score recompute
  58. 2026-08-14 04:16 UTCGHSA enrichmentGHSA-qvhh-2f8h-hqgp · GitHub CVSS 8.5
  59. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  60. 2026-08-13 08:38 UTCGHSA enrichmentGHSA-qvhh-2f8h-hqgp · GitHub CVSS 8.5
  61. 2026-08-12 18:27 UTCEG score recompute
  62. 2026-08-12 18:27 UTCGHSA enrichmentGHSA-qvhh-2f8h-hqgp · GitHub CVSS 8.5
  63. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  64. 2026-08-11 16:44 UTCEG score recompute
  65. 2026-08-11 16:44 UTCGHSA enrichmentGHSA-qvhh-2f8h-hqgp · GitHub CVSS 8.5
  66. 2026-08-11 13:43 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  67. 2026-08-11 02:16 UTCEG score recompute
  68. 2026-08-11 02:16 UTCGHSA enrichmentGHSA-qvhh-2f8h-hqgp · GitHub CVSS 8.5
  69. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  70. 2026-08-10 05:04 UTCGHSA enrichmentGHSA-qvhh-2f8h-hqgp · GitHub CVSS 8.5
  71. 2026-08-09 16:15 UTCEG score recompute
  72. 2026-08-09 16:15 UTCGHSA enrichmentGHSA-qvhh-2f8h-hqgp · GitHub CVSS 8.5
  73. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  74. 2026-08-09 03:27 UTCEG score recompute
  75. 2026-08-09 03:27 UTCGHSA enrichmentGHSA-qvhh-2f8h-hqgp · GitHub CVSS 8.5

Frequently asked(5)

What is CVE-2026-41455?
CVE-2026-41455 is a high-severity vulnerability; its CVE record was published on April 22, 2026. WeKan before 8.35 contains a server-side request forgery vulnerability in webhook integration URL handling where the URL scheme field accepts any string without protocol restriction or destination validation. Attackers who can create or modify integrations can set webhook URLs to internal network…
When was the CVE record for CVE-2026-41455 published?
The CVE record for CVE-2026-41455 was published on April 22, 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 July 14, 2026; the record at its source may have been updated since.
Is CVE-2026-41455 actively exploited?
CVE-2026-41455 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-2026-41455?
CVE-2026-41455 has a CVSS base score of 8.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-41455?
A fix for CVE-2026-41455 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-41455

Explore →

Is Your Infrastructure Affected by CVE-2026-41455?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.