CVE-2025-26819

Monero through 0.18.3.4 before ec74ff4 does not have response limits on HTTP server connections.

8.6 HighFix available

Monero through 0.18.3.4 before ec74ff4 does not have response limits on HTTP server connections.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.56%Up 0.5 points since Feb 15, 2025

What each source reports

CVE List Score used 8.6

Monero through 0.18.3.4 before ec74ff4 does not have response limits on HTTP server connections.

Record: CVE-2025-26819
CVSS 3.1: 8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Weakness: CWE-770
Updated: 2026-11-02

EUVDEUVD-2025-4247 8.6

Monero through 0.18.3.4 before ec74ff4 does not have response limits on HTTP server connections.

Record: EUVD-2025-4247
CVSS 3.1: 8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-w9f7-3m82-hj3j 8.6

Monero through 0.18.3.4 before ec74ff4 does not have response limits on HTTP server connections.

Monero through 0.18.3.4 before ec74ff4 does not have response limits on HTTP server connections.

Record: GHSA-w9f7-3m82-hj3j
CVSS 3.1: 8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Weakness: CWE-770
Updated: 2026-11-02

NVD 8.6

Monero through 0.18.3.4 before ec74ff4 does not have response limits on HTTP server connections.

Record: CVE-2025-26819
CVSS 3.1: 8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-770
Updated: 2026-11-02

OSV 8.6

Monero through 0.18.3.4 before ec74ff4 does not have response limits on HTTP server connections.

Record: CVE-2025-26819
CVSS 3.1: 8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Weakness: CWE-770
Updated: 2026-11-02

OSVDEBIAN-CVE-2025-26819 7.5

Monero through 0.18.3.4 before ec74ff4 does not have response limits on HTTP server connections.

Record: DEBIAN-CVE-2025-26819
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2025-26819 8.6

Monero through 0.18.3.4 before ec74ff4 does not have response limits on HTTP server connections.

Record: UBUNTU-CVE-2025-26819
CVSS 3.1: 8.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

Affected products

getmonero monero

Affected packages

Affected packages
Package	Affected	Fixed
`monero` Debian:12	before 0.18.0.0+~0+20200826-1+deb12u1, plus listed versions 0.18.0.0+~0+20200826-1	0.18.0.0+~0+20200826-1+deb12u1
`monero` Debian:13	before 0.18.3.4+~0+20200826-2	0.18.3.4+~0+20200826-2
`monero` Debian:14	before 0.18.3.4+~0+20200826-2	0.18.3.4+~0+20200826-2
`monero` Ubuntu:22.04:LTS	All versions, plus listed versions 0.17.2.0+~0+20200826-1ubuntu20.17.2.0+~0+20200826-1ubuntu30.17.2.0+~0+20200826-1ubuntu4	None known
`monero` Ubuntu:24.04:LTS	All versions, plus listed versions 0.17.2.0+~0+20200826-1ubuntu60.18.3.1+~0+20200826-10.18.3.1+~0+20200826-1build3	None known
`monero` Ubuntu:25.10	All versions, plus listed versions 0.18.3.4+~0+20200826-30.18.4.0+~0+20200826-10.18.4.0+~0+20200826-1build2	None known
`monero` Ubuntu:26.10	All versions, plus listed versions 0.18.4.5+~0+20200826-10.18.5.0+~0+20260428-10.18.5.0+~0+20260428-1ubuntu1	None known
`monero` Ubuntu:26.04:LTS	All versions, plus listed versions 0.18.4.0+~0+20200826-1build20.18.4.3+~0+20200826-2build10.18.4.3+~0+20200826-2build20.18.4.5+~0+20200826-1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-26819 is a high vulnerability (CVSS 8.6) in Getmonero Monero, published February 14, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.56%, the 46th percentile. Fixed in monero 0.18.0.0+~0+20200826-1+deb12u1.

Attack profile

How easy it is to exploit

What an attacker can affect

Exploit likelihood

What each source reports

Affected products

Affected packages

History

In short

References