HeyCyan App Network Security Configuration AndroidManifest.xml cleartext transmission

published 2026-10-26 15d ago modified 2026-10-26 14d ago also EUVD-2026-109593

cvss: 3.7; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 19%
public exploits: 0; none known

A weakness has been identified in HeyCyan App 1.0.103 on Android. Affected is an unknown function of the file AndroidManifest.xml of the component Network Security Configuration. Executing a manipulation can lead to cleartext transmission of sensitive information. The attack can be launched remotely. The attack requires a high level of complexity. The exploitability is told to be difficult. The vendor was contacted early about this disclosure but did not respond in any way.

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CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 14d ago (2026-10-26)

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	4.0	6.3	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X
CNA	3.1	3.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:X/RC:C
CNA	3.0	3.7	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:X/RC:C
CNA	2.0	2.6	AV:N/AC:H/Au:N/C:P/I:N/A:N/E:ND/RL:ND/RC:C
CNA	4.0	6.3	CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/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
CNA	3.1	3.7	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
CNA	2.0	2.6	AV:N/AC:H/Au:N/C:P/I:N/A:N

Affected products

n/a HeyCyan App

Classification

Weakness

CWE-319 Cleartext Transmission of Sensitive Information
CWE-310 Cryptographic Issues

References

vuldb.com /vuln/426173
vdb-entry
vuldb.com /vuln/426173/cti
signature, permissions-required
vuldb.com /cve/CVE-2026-116105
third-party-advisory
vuldb.com /submit/1002850
third-party-advisory
github.com /ohackercego/heycyan-vulnerabilitys
related

Sources

CVE List CVE-2026-116105
NVD CVE-2026-116105

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