CVE-2026-49355

MEDIUMPre-NVD 4.34.3
EchelonGraph scoreMEDIUM confidence

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

This medium-severity CVE scores 4.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.3% (20th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
4.3EG
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: 4.3Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

OpenProject is open-source, web-based project management software. Prior to 17.4.0, GET /api/v3/meetings/:meeting_id/agenda_items/:agenda_item_id discloses private work package data from a linked work package that belongs to a private/inaccessible project. This vulnerability is fixed in 17.4.0.

CVSS v3
4.3
EG Score
4.3MEDIUMmedium confidence
EG Risk
19
EG Risk 19/100

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)
Severity43% × 45%
The EG Score, 4.3 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: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
0.3%
EPSS %ILE
20th
KEV
Not listed

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

The CVE record names the fixed release. 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.

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

June 26, 2026

Last Modified

June 29, 2026

Advisory Details (1)

Auto-updated Jun 26, 2026
Fix named in the CVE record. Sources: github.
GitHub advisoryMentions a patch (unverified)

Private work package data disclosure through single meeting agenda item API · Advisory · opf/openproject · GitHub

https://github.com/opf/openproject/security/advisories/GHSA-g387-6rm2-xw88

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 27× 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 129 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 29 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

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

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Frequently asked(5)

What is CVE-2026-49355?
CVE-2026-49355 is a medium-severity vulnerability; its CVE record was published on June 26, 2026. OpenProject is open-source, web-based project management software. Prior to 17.4.0, GET /api/v3/meetings/:meetingid/agendaitems/:agendaitemid discloses private work package data from a linked work package that belongs to a private/inaccessible project. This vulnerability is fixed in 17.4.0.
When was the CVE record for CVE-2026-49355 published?
The CVE record for CVE-2026-49355 was published on June 26, 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 June 29, 2026; the record at its source may have been updated since.
Is CVE-2026-49355 actively exploited?
CVE-2026-49355 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (20th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-49355?
CVE-2026-49355 has a CVSS base score of 4.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-49355?
The CVE record for CVE-2026-49355 names the fix: "This vulnerability is fixed in 17.4.0."

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