CVE-2026-5455

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• 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

0.11% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 1.3% of scored records. A rank, not a probability.

NVD base score

1.9 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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 2026-07-24.

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.

Published

2026-04-03 06:00Z5 MO AGO

Last updated

2026-04-03 12:49Z5 MO AGO

Reserved

2026-04-02

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 4.8)

CNA CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

Weaknesses

• CWE-320
• CWE-321Use of Hard-coded Cryptographic KeyVariant

Data version

5.2

Document digest

689f001a7d29b4dc5c9867c0dcec4cd436807600225bff709be39040f2a1b104

• vuldb.comVDB-355043 | Dialogue App ca.diagram.dialogue config.json hard-coded keyhttps://vuldb.com/vuln/355043vdb-entrytechnical-description
• vuldb.comVDB-355043 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/vuln/355043/ctisignaturepermissions-required
• vuldb.comSubmit #781761 | Dialogue Dialogue(ca.diagram.dialogue) 4.3.2 Segment Write Key Exposurehttps://vuldb.com/submit/781761third-party-advisory
• www.notion.sohttps://www.notion.so/Segment-Write-Key-Exposure-Leading-to-Data-Injection-and-User-Profile-Manipulation-In-ca-diagram-dia-3262de3f97fb802fb5f0d2c9d179dcf6?source=copy_linkexploit