CVE-2026-109426 (GCVE-0-2026-109426)
Vulnerability from cvelistv5 – Published: 2026-10-12 20:34 – Updated: 2026-10-13 15:54 X_Open Source
VLAI
EPSS
VEX
Title
Telegram-Stremio 5.1.0 Insecure Session Storage via encode_string
Summary
Telegram-Stremio through 5.1.0 contains an insecure storage vulnerability that allows attackers with access to the MongoDB database, backups, or logs to recover the operator's authenticated Telegram session string, which is protected only by a keyless, reversible encoding transform rather than actual encryption. Attackers can round-trip the stored value through the repository's own decode_string function with no secret key to obtain a fully authenticated Telegram session, granting complete control of the operator's Telegram account even when two-step verification is enabled.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-13 15:53 UTC
CWE
- CWE-312 - Cleartext Storage of Sensitive Information
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://gist.github.com/mansurmavlankulov/489554c… | technical-description |
| https://www.vulncheck.com/advisories/telegram-str… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| weebzone | Telegram-Stremio |
Affected:
0 , ≤ 5.1.0
(semver)
|
guessed |
Date Public
2026-10-02 00:00
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