01 Record
CVE-2026-56424
Broken access control in MISP core allows cross-organization unauthorized modification or deletion of analyst data, event reports, collections, templates, and decaying models
HighPUBLISHEDCNA: CIRCL
CNA base score7.1 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:L/SI:N/SA:N
02 Description
Broken access control in MISP core allows cross-organization unauthorized modification or deletion of analyst data, event reports, collections, templates, and decaying models
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.52% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 44.1% of scored records. A rank, not a probability.
- NVD base score
- 7.1 (CVSS v4.0), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- NVD analysis status
- Analyzed. NVD last modified this record on 2026-06-23.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-06-22 12:17Z4 MO AGO
- Last updated
- 2026-06-23 14:19Z4 MO AGO
- Reserved
- 2026-06-22
- Assigning CNA
- CIRCL
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.1)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:L/SI:N/SA:N
- Weaknesses
- Data version
- 5.2
- Document digest
- 289a3024938e210956de7f0e87735c5aaab2cdd09355e9bbfe590fcfb3c498f1
05 Affected products
VendorProductVersionsPlatforms
06 References
- github.comhttps://github.com/MISP/MISP/commit/24d7e91339a3ef043652dd5799c36e5065b2bb4a
- github.comhttps://github.com/MISP/MISP/commit/57ad774d21bd1863d060a9e6e73ae54eb96784ce
- github.comhttps://github.com/MISP/MISP/commit/3aecc04d5816189412b589cf590c6dbe9a8db5c0
- github.comhttps://github.com/MISP/MISP/commit/ba2f51fe7440ba2c6043ccde858cac1e25f96931
- github.comhttps://github.com/MISP/MISP/commit/744005cefdc3b943bd29669c3b34cc66a5fc2154