Coturn 4.10.0 Uninitialized Stack Memory Disclosure via ERROR-CODE
Coturn 4.10.0 contains an uninitialized memory disclosure vulnerability that allows remote unauthenticated attackers to leak stack memory contents by sending a TURN Allocate request without credentials. Attackers can exploit the stun_init_error_response_common_str() function in src/client/ns_turn_msg.c, which fails to zero-initialize the avalue buffer before computing its length with strlen() and copying leaked stack bytes into the ERROR-CODE reason phrase, exposing pointer fragments that weaken ASLR and enable precise version fingerprinting.
CVE-2026-104074
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-2026-104074
coturn
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/coturn/coturn",
"vendor": "coturn",
"product": "coturn",
"versions": [
{
"status": "affected",
"version": "4.10.0",
"lessThan": "4.11.0",
"versionType": "semver"
}
],
"packageURL": "pkg:github/coturn/coturn",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-104074
Source reference:
/cveMetadata/cveId
Publisher severity
medium
Source reference: /containers/cna/metrics
- Event
- #12280 · Revision 1
- Added to Heist Feed
- Publisher date