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01 Record

CVE-2026-95667

MISP Installer Log and FIFO Created World-Readable, Exposing Sensitive Credentials

MediumPUBLISHEDCNA: CIRCL
CNA base score6.9 CVSS v4.0CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
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02 Description

MISP Installer Log and FIFO Created World-Readable, Exposing Sensitive Credentials

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.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.18% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 7.5% of scored records. A rank, not a probability.
NVD base score
6.9 (CVSS v4.0), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/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
Deferred. NVD last modified this record on 2026-09-22.
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
2026-09-22 13:11Z1 MO AGO
Last updated
2026-09-22 15:32Z1 MO AGO
Reserved
2026-09-22
Assigning CNA
CIRCL
Record state
PUBLISHED
Severity
Medium (CVSS 6.9)
CNA CVSS vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Weaknesses
  • CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base
  • CWE-732Incorrect Permission Assignment for Critical ResourceClass
Data version
5.2
Document digest
6f0ccaf3e426067af9333e2c9eeea2ffa9862f86c29c8309ce179a1371e0f3cf

05 Affected products

VendorProductVersionsPlatforms
MISPMISP0 to < 2.5.47—

06 References

07 Remediation

The installer scripts now explicitly create the log file with 0600 permissions using install -m 0600 and the FIFO with mkfifo -m 0600, ensuring both are root-readable/writable only from the moment of creation. The log file is also removed (rm -f) before creation to prevent a pre-existing symlink in /var/log from being used to redirect the write to an attacker-controlled path. This matches the existing 0600 treatment applied to /root/misp_settings.txt by the save_settings() function.