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Telegram-Stremio 5.1.0 Insecure Session Storage via encode_string

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-109426

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-109426

Telegram-Stremio

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://github.com/weebzone/Telegram-Stremio",
    "vendor": "weebzone",
    "product": "Telegram-Stremio",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "versionType": "semver",
        "lessThanOrEqual": "5.1.0"
      }
    ],
    "packageURL": "pkg:github/weebzone/Telegram-Stremio",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-109426

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#20344 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement