GRID Organiser App co.gridapp.organiser app.json hard-coded key

published 2026-04-03 7 mo ago modified 2026-07-24 3 mo ago also EUVD-2026-18599

cvss: 3.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.1%; EPSS 0.1% chance of exploitation in 30 days, percentile 3%
public exploits: 0; none known

A vulnerability was found in GRID Organiser App up to 1.0.5 on Android. Impacted is an unknown function of the file file res/raw/app.json of the component co.gridapp.organiser. Performing a manipulation of the argument SegmentWriteKey results in use of hard-coded cryptographic key . The attack is only possible with local access. The exploit has been made public and could be used.

CISA SSVC

Exploitation: Proof of concept is public
Automatable: no
Technical impact: partial
Assessed: 7 mo ago (2026-04-03)

Exploit prediction

0.15% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

notion.so https://www.notion.so/Segment-Write-Key-Exposure-Leading-to-Data-Injection-and-User-Profile-Manipulation-In-co-gridapp-org-3262de3f97fb801b9173c4851c7ad864?source=copy_link referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
CNA	4.0	4.8	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
CNA	3.1	3.3	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
CNA	3.0	3.3	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
CNA	2.0	1.7	AV:L/AC:L/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR
CNA	4.0	1.9	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
CNA	3.1	3.3	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CNA	2.0	1.7	AV:L/AC:L/Au:S/C:P/I:N/A:N

Affected products

GRID Organiser App

Classification

Weakness

CWE-321 Use of Hard-coded Cryptographic Key
CWE-320 Key Management Errors

References

notion.so /Segment-Write-Key-Exposure-Leading-to-Data-Injection-and-User-Profile-Manipulation-In-co-gridapp-org-3262de3f
exploit
vuldb.com /vuln/355042
vdb-entry, technical-description
vuldb.com /vuln/355042/cti
signature, permissions-required
vuldb.com /submit/781759
third-party-advisory

Sources

CVE List CVE-2026-5454
NVD CVE-2026-5454

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary