VulnerabilityPublished 27 Oct 2026

CVE-2026-116678: dani-garcia vaultwarden · Server-Side Request Forgery (SSRF)

Affects dani-garcia vaultwardenSource CVE Database V5

Mentioned vulnerabilities

CVE-2026-47160

Not known to be exploited · CVSS 5.8 Medium : upgrade to 1.37.0 when convenient.

Data as of 27 Oct 2026, 17:57 UTC

CVSS 3.1 base score

5.8Medium

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

Patch: Available – fixed in 1.37.0

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

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

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: Changed: An exploited vulnerability can affect resources beyond the security scope managed by the security authority of the vulnerable component. In this case, the vulnerable component and the impacted component are different and managed by different security authorities.
Confidentiality: Low: There is some loss of confidentiality. Access to some restricted information is obtained, but the attacker does not have control over what information is obtained, or the amount or kind of loss is limited. The information disclosure does not cause a direct, serious loss to the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: None: There is no impact to availability within the impacted component.

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 27 Oct 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 vaultwarden and dani-garcia/vaultwarden to 1.37.0.

Affected software

Product	Affected	Fixed in
dani-garciavaultwarden	Affected <1.37.0	Fixed in 1.37.0
GitHubdani-garcia/vaultwarden`pkg:github/dani-garcia/vaultwarden`Other threats	Affected <1.37.0	Fixed in 1.37.0

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

AI-suggested

This vulnerability is fixed in Vaultwarden version 1.37.0. Users should upgrade to version 1.37.0 or later to remediate this issue. Instances with internal icon downloading enabled are affected and should prioritize applying this update. No additional mitigation steps are indicated by the vendor advisory.

Description

CVE-2026-116678 is a server-side request forgery (SSRF) vulnerability in Vaultwarden versions prior to 1.37.0. The flaw arises because the icon downloader does not properly apply host-blocking checks to second-stage favicon URLs parsed from attacker-controlled HTML, allowing an unauthenticated remote attacker to cause the server to make requests to internal or loopback IP addresses. This can expose internal responses or reveal network reachability information. The issue is fixed in version 1.37.0.

Impact

A remote unauthenticated attacker can exploit this SSRF vulnerability to make the Vaultwarden server perform requests to internal or loopback IP addresses. This may expose internal responses that appear as supported images or allow the attacker to infer internal network reachability based on timing, status codes, or cache behavior. The confidentiality impact is limited to information disclosure; integrity and availability are not affected. The CVSS score is 5.8 (medium severity).

CWE-918Server-Side Request Forgery (SSRF) (opens in a new tab)
Base weaknessCWE Top 25 (2025): #22OWASP Top 10 A01:2025: Broken Access Control (opens in a new tab)
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.
OWASP Cheat Sheets
Server Side Request Forgery Prevention (opens in a new tab)
Unvalidated Redirects and Forwards (opens in a new tab)
Cross Site Scripting Prevention (opens in a new tab)
DOM based XSS Prevention (opens in a new tab)
Authorization (opens in a new tab)
OWASP ASVS 4.0.3
V12.6.1 (opens in a new tab)
V5.2.6 (opens in a new tab)
Attack patterns
Server Side Request Forgery (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 27 Oct 2026, 17:44 UTC

WeaknessesCWE-918

Technical details

References

Community reviews

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