CVE-2020-10663: apple macos Improper Input Validation
Vulnerability summary
CVE-2020-10663 is a high (CVSS 7.5) Improper Input Validation vulnerability in apple macos. EPSS estimates a 6.81% chance of exploitation in the next 30 days, higher than 94% of scored vulnerabilities.
Severe, CVSS 7.5 (NVD); no exploitation reported by the 5 checked sources; EPSS 7% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 20 · Related 13Timeline
- 28-04-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
The JSON gem through 2.2.0 for Ruby, as used in Ruby 2.4 through 2.4.9, 2.5 through 2.5.7, and 2.6 through 2.6.5, has an Unsafe Object Creation Vulnerability. This is quite similar to CVE-2013-0269, but does not rely on poor garbage-collection behavior within Ruby. Specifically, use of JSON parsing methods can lead to creation of a malicious object within the interpreter, with adverse effects that are application-dependent.
CVSS metrics
7 scores · 6 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- OSV · Red hatEcosystem advisory · calculated7.3HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:LDiffers
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- OSV · RubygemsEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS trend
Probability
6.81%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
No change 0.00 pp
From 6.81% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian3 products
- ruby-json< 1.8.1-1+deb8u1 | < 2.3.0+dfsg-1
- ruby2.1< 2.1.5-2+deb8u10
- debian_linuxEOL8.0 | 10.0
Opensuse3 products
- leapEOL15.1
- ruby3.2-rubygem-json_pure&distro=openSUSE Tumbleweed< 2.6.3-1.3
- rubygem-json_pure&distro=openSUSE Tumbleweed< 2.7.1-1.1 | < 2.7.6-1.3 | < 2.7.6-1.5 | < 2.6.1-1.1
Ubuntu3 products
- ruby-jsonAll versions (No fix recorded)
- ruby2.3< 2.3.1-2~ubuntu16.04.15
- ruby2.5< 2.5.1-1ubuntu1.8
Redhat2 products
- pcs< 0:0.10.4-6.el8_2.1 | < 0:0.10.1-4.el8_0.5 | < 0:0.10.2-4.el8_1.1
- pcs-snmp< 0:0.10.4-6.el8_2.1 | < 0:0.10.1-4.el8_0.5 | < 0:0.10.2-4.el8_1.1
Alpine1 product
- ruby< 2.5.8-r0 | < 2.6.6-r0 | < 2.4.10-r0
Apple1 product
- macosEOL11.0.1
Fedoraproject1 product
- fedoraEOL30 | 31
Json_project1 product
- json≤ 2.2.0
Mageia1 product
- ruby-json< 2.1.0-3.1.mga7
RubyGems1 product
- json< 2.3.0
10 vendors · 17 products
References
61 links- www.ruby-lang.org/en/news/2020/03/19/json-dos-cve-2020-10663/X Refsource CONFIRMWEBREPORTVendor Advisory
lists.debian.org/debian-lts-announce/2020/04/msg00030.htmlMailing ListX Refsource MLISTWEBThird Party Advisory- lists.opensuse.org/opensuse-security-announce/2020-05/msg00004.htmlVendor AdvisoryX Refsource SUSEWEBMailing ListThird Party Advisory
Show all 61 references
- github.com/flori/jsonPACKAGE