VulnerabilityPublished 8 Jul 2026

CVE-2026-60001: OpenSSH · Sshd

Affects opensshSource GCVE Database

Authoritative record:CVE-2026-60001· Medium 6.5

Not known to be exploited · CVSS 6.5 Medium · fixed in 1:8.2p1-4ubuntu0.13+esm3 : update openssh when convenient.

Data as of 26 Oct 2026, 10:12 UTC

CVSS 3.1 base score

6.5Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 21% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Affects: OpenSSH before 10.4
Patch: Available – fixed in 1:8.2p1-4ubuntu0.13+esm3, 1:8.9p1-3ubuntu0.16, 1:8.9p1-3ubuntu0.16+Fips3 +3

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

Attack Vector: Network
Attack Complexity: Low
Privileges Required: None
User Interaction: None
Scope: Unchanged
Confidentiality: None
Integrity: Low
Availability: Low

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact on the impacted component.
Availability: Low: Performance is reduced or there are interruptions in resource availability. Even if repeated exploitation of the vulnerability is possible, the attacker does not have the ability to completely deny service to legitimate users. The resources in the impacted component are either partially available all of the time, or fully available only some of the time, but overall there is no direct, serious consequence to the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 8 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
Ubuntu 26.10openssh-ssh1`pkg:deb/ubuntu/openssh-ssh1?arch=source&distro=stonking`Other threats	Affected =1:7.5p1-18 =1:7.5p1-18ubuntu1 =1:7.5p1-18ubuntu2	Fixed in–
Ubuntu 26.04 LTSopenssh`pkg:deb/ubuntu/openssh?arch=source&distro=resolute`Other threats	Affected <1:10.2p1-2ubuntu3.4	Fixed in 1:10.2p1-2ubuntu3.4
Ubuntu 26.04 LTSopenssh-ssh1`pkg:deb/ubuntu/openssh-ssh1?arch=source&distro=resolute`Other threats	Affected =1:7.5p1-17 =1:7.5p1-18	Fixed in–
Ubuntu 25.10openssh`pkg:deb/ubuntu/openssh?arch=source&distro=questing`Other threats	Affected 1:9.9p1-3ubuntu3 – 1:10.0p1-5ubuntu5.4 8 affected builds	Fixed in–
Ubuntu 25.10openssh-ssh1`pkg:deb/ubuntu/openssh-ssh1?arch=source&distro=questing`Other threats	Affected =1:7.5p1-17	Fixed in–
Ubuntu 24.04 LTSopenssh`pkg:deb/ubuntu/openssh?arch=source&distro=noble`Other threats	Affected <1:9.6p1-3ubuntu13.18	Fixed in 1:9.6p1-3ubuntu13.18

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A patch is available and should be applied to affected OpenSSH installations. Ubuntu and Red Hat have released updated packages that fix this issue. Users should update their OpenSSH packages to the fixed versions as provided by their distribution's security advisories. No additional mitigation steps are indicated beyond applying the official updates.

Description

OpenSSH versions before 10.4 have a vulnerability where the SSH daemon (sshd) does not consistently enforce the minimum authentication delay. This flaw can allow an attacker to perform brute-force authentication attempts more efficiently than intended. The issue has been assigned CVE-2026-60001 and is rated with a medium severity. Official patches are available from multiple vendors, including Ubuntu and Red Hat, to address this vulnerability.

Impact

An attacker can exploit this vulnerability to perform brute-force authentication attempts against the OpenSSH server more rapidly than intended, potentially increasing the likelihood of guessing valid credentials. The vulnerability does not directly impact confidentiality but affects integrity and availability by enabling more efficient unauthorized access attempts and potential denial of service through excessive authentication tries.

Summary

The OpenSSH server (sshd) prior to version 10.4 does not always honor the configured minimum authentication delay, which is intended to slow down repeated authentication attempts. This behavior can facilitate brute-force attacks by reducing the time between authentication tries. The vulnerability is tracked as CVE-2026-60001 and has a CVSS v3.1 base score of 6.5 (medium severity). Multiple Linux distributions have released security updates to fix this issue, including Ubuntu and Red Hat Enterprise Linux. The patches restore proper enforcement of the authentication delay to mitigate brute-force attack efficiency.

CWE-307Improper Restriction of Excessive Authentication Attempts (opens in a new tab)
Base weaknessOWASP Top 10 A07:2025: Authentication Failures (opens in a new tab)
The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame.
Architecture and Design
Common protection mechanisms include: Disconnecting the user after a small number of failed attempts; Implementing a timeout; Locking out a targeted account; Requiring a computational task on the user's part.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
OWASP Cheat Sheets
Authentication (opens in a new tab)
Transport Layer Protection (opens in a new tab)
TLS Cipher String (opens in a new tab)
OWASP ASVS 4.0.3
V2.2.1 (opens in a new tab)
V2.8.5 (opens in a new tab)
V2.8.4 (opens in a new tab)
Attack patterns
Dictionary-based Password Attack (opens in a new tab)
Password Brute Forcing (opens in a new tab)
Password Spraying (opens in a new tab)
Credential Stuffing (opens in a new tab)
Use of Known Kerberos Credentials (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

GCVE source: db.gcve.eu
OSV ID: UBUNTU-CVE-2026-60001
Osv Schema Version: 1.7.0
Ecosystems: Ubuntu:Pro:14.04:LTS, Ubuntu:Pro:16.04:LTS, Ubuntu:Pro:FIPS:16.04:LTS, Ubuntu:Pro:18.04:LTS, Ubuntu:18.04:LTS, Ubuntu:Pro:FIPS-updates:18.04:LTS, Ubuntu:Pro:FIPS:18.04:LTS, Ubuntu:Pro:20.04:LTS, Ubuntu:20.04:LTS, Ubuntu:Pro:FIPS-updates:20.04:LTS, Ubuntu:Pro:FIPS:20.04:LTS, Ubuntu:22.04:LTS, Ubuntu:Pro:FIPS-preview:22.04:LTS, Ubuntu:Pro:FIPS-updates:22.04:LTS, Ubuntu:24.04:LTS, Ubuntu:Pro:FIPS-updates:24.04:LTS, Ubuntu:25.10, Ubuntu:26.04:LTS
CVSS version: 3.1

References

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 25 Oct 2026, 12:30 UTC

WeaknessesCWE-307

Technical details

References

Community reviews

Related threats