DEBIAN-CVE-2026-78002

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Source
https://security-tracker.debian.org/tracker/CVE-2026-78002
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-78002.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-78002
Upstream
  • CVE-2026-78002
Published
2026-08-27T17:20:29Z
Modified
2026-09-14T17:03:24Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A flaw was found in rsyslog. An unauthenticated remote attacker can trigger a heap buffer overflow in the RainerScript replace() function by sending specially crafted syslog messages. This vulnerability arises from an incorrect buffer size calculation during string replacement, causing memory corruption. Successful exploitation can lead to a denial of service (DoS) for the affected system.

References

Affected packages

Debian:12 / rsyslog

Package

Name
rsyslog
Purl
pkg:deb/debian/rsyslog?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

8.*
8.2302.0-1
8.2302.0-1+deb12u1
8.2304.0-1
8.2306.0-1
8.2306.0-2
8.2308.0-1
8.2310.0-1
8.2310.0-2
8.2310.0-3
8.2310.0-4
8.2312.0-1
8.2312.0-2
8.2312.0-3
8.2402.0-1
8.2404.0-1
8.2404.0-2
8.2406.0-1
8.2408.0-1
8.2408.0-2
8.2410.0-1
8.2412.0-1
8.2412.0-2
8.2502.0-1
8.2502.0-2
8.2502.0-3
8.2502.0-4
8.2502.0-5
8.2502.0-6
8.2504.0-1
8.2506.0-1
8.2506.0-2
8.2506.0-3
8.2506.0-4
8.2506.0-6
8.2510.0-1
8.2510.0-2
8.2510.0-3
8.2510.0-4
8.2510.0-5
8.2512.0-1
8.2512.0-2
8.2512.0-3
8.2602.0-1
8.2604.0-1
8.2604.0-2
8.2604.0-3
8.2604.0-4
8.2606.0-1
8.2606.0-2
8.2606.0-3
8.2606.0-4
8.2608.0-1
8.2608.0-2
8.2608.0-3
8.2608.0-4

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-78002.json"

Debian:13 / rsyslog

Package

Name
rsyslog
Purl
pkg:deb/debian/rsyslog?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
8.2504.0-1+deb13u2

Affected versions

8.*
8.2504.0-1
8.2504.0-1+deb13u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-78002.json"

Debian:14 / rsyslog

Package

Name
rsyslog
Purl
pkg:deb/debian/rsyslog?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
8.2608.0-4

Affected versions

8.*
8.2504.0-1
8.2506.0-1
8.2506.0-2
8.2506.0-3
8.2506.0-4
8.2506.0-6
8.2510.0-1
8.2510.0-2
8.2510.0-3
8.2510.0-4
8.2510.0-5
8.2512.0-1
8.2512.0-2
8.2512.0-3
8.2602.0-1
8.2604.0-1
8.2604.0-2
8.2604.0-3
8.2604.0-4
8.2606.0-1
8.2606.0-2
8.2606.0-3
8.2606.0-4
8.2608.0-1
8.2608.0-2
8.2608.0-3

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-78002.json"