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CVE-2020-7760

25
FAUCET Score

CVE-2020-7760 is a Regular Expression Denial of Service (ReDoS) vulnerability affecting CodeMirror versions prior to 5.58.2, including its use in Apache Marmotta. The vulnerability stems from an inefficient regular expression within the JavaScript mode, specifically the sub-pattern (s|/*.*?*/)*. With a CVSS score of 7.5 (HIGH), this vulnerability can lead to a denial of service (A:H) due to excessive resource consumption when processing specially crafted input, requiring no user interaction (AV:N/AC:L/PR:N/UI:N). There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.58.2CPE matchmatch criteria
cpe:2.3:a:codemirror:codemirror:*:*:*:*:*:*:*:*
< 20.2CPE matchmatch criteria
cpe:2.3:a:oracle:application_express:*:*:*:*:*:*:*:*
19cCPE matchmatch criteria
cpe:2.3:a:oracle:enterprise_manager_express_user_interface:19c:*:*:*:*:*:*:*
21.2CPE matchmatch criteria
cpe:2.3:a:oracle:essbase:21.2:*:*:*:*:*:*:*
< 11.2.9.0CPE matchmatch criteria
cpe:2.3:a:oracle:hyperion_data_relationship_management:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
5.26%
Probability of exploitation in next 30 days
EPSS Percentile
91.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0526 is in the 85th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

github_advisorypatch availablevia nvd_reference
View patch
npmpatch availablevia ghsa
Product: codemirrorFixed in: 5.58.2
oraclepatch availablevia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat Ansible Tower 3Fixed in: angular-codemirror
redhatend of lifevia redhat_api
Product: Red Hat Ansible Tower 3Fixed in: codemirror

Vendor Advisories (2)

npmGHSA-4gw3-8f77-f72cmedium

Regular expression denial of service in codemirror

May 10, 2021
redhatCVE-2020-7760Moderate

codemirror: ReDoS in tokenBase function in javascript.js

Oct 9, 2020

References

github.com / codemirror/CodeMirror/commit/55d0333907117c9231ffdf555ae8824705993bbb
PatchThird Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGAPACHEMARMOTTAWEBJARS-1024450
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGWEBJARS-1024449
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGWEBJARSBOWER-1024445
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBCODEMIRROR-1024448
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGWEBJARSBOWERGITHUBCOMPONENTS-1024446
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JAVA-ORGWEBJARSNPM-1024447
ExploitThird Party Advisory
snyk.io / vuln/SNYK-JS-CODEMIRROR-1016937
ExploitThird Party Advisory
debian.org / security/2020/dsa-4789
Third Party Advisory
oracle.com / security-alerts/cpuApr2021.html
PatchThird Party Advisory
oracle.com / security-alerts/cpuapr2022.html
PatchThird Party Advisory
oracle.com / /security-alerts/cpujul2021.html
PatchThird Party Advisory