GHSA-x457-cw4h-hq5f · Severity: high · Ecosystem: rubygems — JSON gem has Improper Input Validation vulnerability
The JSON gem before 1.5.5, 1.6.x before 1.6.8, and 1.7.x before 1.7.7 for Ruby allows remote attackers to cause a denial of service (resource consumption) or bypass the mass assignment protection mechanism via a crafted JSON document that triggers the creation of arbitrary Ruby symbols or certain internal objects, as demonstrated by conducting a SQL injection attack against Ruby on Rails, aka "Unsafe Object Creation Vulnerability."
Conclusion & alert: CVE-2013-0269 is rated Moderate Risk (60.2/100): CVSS High severity, with high exploitation likelihood (EPSS 13.91%, 96th percentile). Core evidence: EPSS ranks this CVE among the most likely to be exploited in the near term. Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
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 | 2026-06-15 | 17.32% | 13.91% | -3.41% |
| 2 | 2026-06-02 | 15.42% | 17.32% | +1.89% |
| 3 | 2026-04-27 | — | 15.42% | — |
Full EPSS history (46 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 7.5 | 2.0 | HIGH |
|
10.0 | 6.4 | [email protected] |
GHSA-x457-cw4h-hq5f · Severity: high · Ecosystem: rubygems — JSON gem has Improper Input Validation vulnerability
| vendor | priority | summary | link |
|---|---|---|---|
debian
|
not yet assigned | CVE-2013-0269 not yet assigned priority: Debian including 1 source packages (ruby-json), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. | https://security-tracker.debian.org/tracker/CVE-2013-0269 |
gentoo
|
normal | CVE-2013-0269: 1 GLSA(s) (201412-27), 1 atom(s) (dev-lang/ruby); latest impact normal. | https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2013-0269 |
redhat
|
medium | — | https://access.redhat.com/security/cve/CVE-2013-0269 |
suse
|
medium | CVE-2013-0269 severity moderate: SUSE including 23 source package names (ruby19-1.9.3.p392-0.7.1, ruby19-devel-1.9.3.p392-0.7.1, …), 26 product×package rows across 8 product lines (SUSE Cloud Compute Node for SUSE Linux Enterprise 12 5, SUSE Lifecycle Management Server 1.3, … (8 product lines)): Fixed 26. | https://www.suse.com/security/cve/CVE-2013-0269/ |
ubuntu
|
medium | CVE-2013-0269 medium priority: Ubuntu including 2 source packages (ruby-json, ruby1.9.1), 30 status rows across 15 suites (hardy, lucid, oneiric, precise, quantal, raring, saucy, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): released 9, not-affected 8, DNE 7, ignored 6. | https://ubuntu.com/security/CVE-2013-0269 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| rubygems | json_gem | 1.5.0 | cpe:2.3:a:rubygems:json_gem:1.5.0:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.5.1 | cpe:2.3:a:rubygems:json_gem:1.5.1:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.5.2 | cpe:2.3:a:rubygems:json_gem:1.5.2:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.5.3 | cpe:2.3:a:rubygems:json_gem:1.5.3:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.5.4 | cpe:2.3:a:rubygems:json_gem:1.5.4:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.6.0 | cpe:2.3:a:rubygems:json_gem:1.6.0:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.6.1 | cpe:2.3:a:rubygems:json_gem:1.6.1:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.6.2 | cpe:2.3:a:rubygems:json_gem:1.6.2:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.6.3 | cpe:2.3:a:rubygems:json_gem:1.6.3:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.6.4 | cpe:2.3:a:rubygems:json_gem:1.6.4:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.6.5 | cpe:2.3:a:rubygems:json_gem:1.6.5:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.6.6 | cpe:2.3:a:rubygems:json_gem:1.6.6:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.6.7 | cpe:2.3:a:rubygems:json_gem:1.6.7:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.7.0 | cpe:2.3:a:rubygems:json_gem:1.7.0:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.7.1 | cpe:2.3:a:rubygems:json_gem:1.7.1:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.7.2 | cpe:2.3:a:rubygems:json_gem:1.7.2:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.7.3 | cpe:2.3:a:rubygems:json_gem:1.7.3:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.7.4 | cpe:2.3:a:rubygems:json_gem:1.7.4:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.7.5 | cpe:2.3:a:rubygems:json_gem:1.7.5:*:*:*:*:*:*:* |
| rubygems | json_gem | 1.7.6 | cpe:2.3:a:rubygems:json_gem:1.7.6:*:*:*:*:*:*:* |