CVE-2016-5697

Ruby-saml before 1.3.0 allows attackers to perform XML signature wrapping attacks via unspecified vectors.

Published: 2017-01-23 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-5697 is rated Moderate Risk (51.9/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.42%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-5697

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-08 0.13% 0.42% +0.28%
2 2025-07-27 0.22% 0.13% -0.09%
3 2025-03-30 — 0.22% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-5697

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2016-5697

GitHub Security Advisory for CVE-2016-5697

GHSA-36p7-xjw8-h6f2 · Severity: high · Ecosystem: rubygems — Ruby-saml allows attackers to perform XML signature wrapping attacks

OS Trackers for CVE-2016-5697

vendor priority summary link
debian not yet assigned CVE-2016-5697 not yet assigned priority: Debian including 1 source packages (ruby-saml), 2 status rows across 2 suites (bookworm, bullseye): resolved 2. https://security-tracker.debian.org/tracker/CVE-2016-5697
ubuntu medium CVE-2016-5697 medium priority: Ubuntu including 1 source packages (ruby-saml), 22 status rows across 22 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, kinetic, lunar, mantic, noble, oracular, precise, trusty, upstream, wily, xenial, yakkety, zesty): not-affected 14, ignored 4, DNE 2, released 2. https://ubuntu.com/security/CVE-2016-5697

Affected software / configurations for CVE-2016-5697

Vendor Product Version Raw CPE
onelogin ruby-saml <= 1.2.0 cpe:2.3:a:onelogin:ruby-saml:*:*:*:*:*:*:*:*

References for CVE-2016-5697

URL Tags
http://www.openwall.com/lists/oss-security/2016/06/24/3 Mailing List Patch Third Party Advisory
cvelogic Threat Intelligence