CVE-2020-7788: Prototype Pollution

Modified

AliasesMGASA-2021-0068UBUNTU-CVE-2020-7788DEBIAN-CVE-2020-7788+163 more

Published 11-12-2020Last modified 08-10-2026

Vulnerability summary

CVE-2020-7788 is a critical (CVSS 9.8) vulnerability in debian debian_linux. EPSS estimates a 3.65% chance of exploitation in the next 30 days, higher than 89.6% of scored vulnerabilities. 1 public exploit is recorded.

Priority

Prioritisepublic exploit

Public exploit (reference, Date unknown)

Source freshness unavailable

How is this decided?

CVSS score

9.8/10

010

Critical · v3.1 (NVD)

EPSS score

3.65%

0%100%

Low · 0.00 pp in 30 days

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits1reference

Timeline

11-12-2020
PublishedVulnerability first disclosed.
08-10-2026
Last modifiedVulnerability information updated.

Description

This affects the package ini before 1.3.6. If an attacker submits a malicious INI file to an application that parses it with ini.parse, they will pollute the prototype on the application. This can be exploited further depending on the context.

CVSS metrics

8 scores · 7 sources · 2 versions

v3.19.8v2.07.5

EPSS trend

Probability

3.65%

Chance of exploitation in the next 30 days

Percentile

90%

Versus all other CVEs

30-day change

No change 0.00 pp

From 3.65% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found

referenceUnverified
Exploit Reference (snyk.io)
Maturity: unknown

Weaknesses

CWE · root cause

CWE-1321Improperly Controlled Modification of Object Prototype AttributesThe product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard74 products

code-serverAll versions (No fix recorded)
code-server-compatAll versions (No fix recorded)
commercial-gitlab-rails-ee-assets-19.1All versions (No fix recorded)
commercial-gitlab-rails-ee-assets-19.2All versions (No fix recorded)
commercial-gitlab-rails-ee-assets-19.3All versions (No fix recorded)

commercial-gitlab-rails-ee-assets-19.4All versions (No fix recorded)
commercial-gitlab-rails-ee-assets-19.5All versions (No fix recorded)
commercial-gitlab-rails-ee-assets-fips-19.1All versions (No fix recorded)
commercial-gitlab-rails-ee-assets-fips-19.2All versions (No fix recorded)
commercial-gitlab-rails-ee-assets-fips-19.3All versions (No fix recorded)
commercial-gitlab-rails-ee-assets-fips-19.4All versions (No fix recorded)
commercial-gitlab-rails-ee-assets-fips-19.5All versions (No fix recorded)
gitlab-rails-ce-18.1All versions (No fix recorded)
gitlab-rails-ce-18.2All versions (No fix recorded)
gitlab-rails-ce-18.3All versions (No fix recorded)
gitlab-rails-ce-18.4All versions (No fix recorded)
gitlab-rails-ce-18.5All versions (No fix recorded)
gitlab-rails-ce-18.6All versions (No fix recorded)
gitlab-rails-ce-18.7All versions (No fix recorded)
gitlab-rails-ce-assets-18.1All versions (No fix recorded)
gitlab-rails-ce-assets-18.10All versions (No fix recorded)
gitlab-rails-ce-assets-18.11All versions (No fix recorded)
gitlab-rails-ce-assets-18.2All versions (No fix recorded)
gitlab-rails-ce-assets-18.3All versions (No fix recorded)
gitlab-rails-ce-assets-18.4All versions (No fix recorded)
gitlab-rails-ce-assets-18.5All versions (No fix recorded)
gitlab-rails-ce-assets-18.6All versions (No fix recorded)
gitlab-rails-ce-assets-18.7All versions (No fix recorded)
gitlab-rails-ce-assets-18.8All versions (No fix recorded)
gitlab-rails-ce-assets-18.9All versions (No fix recorded)
gitlab-rails-ce-assets-19.0All versions (No fix recorded)
gitlab-rails-ce-assets-19.1All versions (No fix recorded)
gitlab-rails-ce-assets-19.2All versions (No fix recorded)
gitlab-rails-ce-assets-19.3All versions (No fix recorded)
gitlab-rails-ce-assets-19.4All versions (No fix recorded)
gitlab-rails-ce-assets-19.5All versions (No fix recorded)
gitlab-rails-ce-assets-fips-18.1All versions (No fix recorded)
gitlab-rails-ce-assets-fips-18.10All versions (No fix recorded)
gitlab-rails-ce-assets-fips-18.11All versions (No fix recorded)
gitlab-rails-ce-assets-fips-18.2All versions (No fix recorded)
gitlab-rails-ce-assets-fips-18.3All versions (No fix recorded)
gitlab-rails-ce-assets-fips-18.4All versions (No fix recorded)
gitlab-rails-ce-assets-fips-18.5All versions (No fix recorded)
gitlab-rails-ce-assets-fips-18.6All versions (No fix recorded)
gitlab-rails-ce-assets-fips-18.7All versions (No fix recorded)
gitlab-rails-ce-assets-fips-18.8All versions (No fix recorded)
gitlab-rails-ce-assets-fips-18.9All versions (No fix recorded)
gitlab-rails-ce-assets-fips-19.0All versions (No fix recorded)
gitlab-rails-ce-assets-fips-19.1All versions (No fix recorded)
gitlab-rails-ce-assets-fips-19.2All versions (No fix recorded)
gitlab-rails-ce-assets-fips-19.3All versions (No fix recorded)
gitlab-rails-ce-assets-fips-19.4All versions (No fix recorded)
gitlab-rails-ce-assets-fips-19.5All versions (No fix recorded)
gitlab-rails-ce-doc-18.1All versions (No fix recorded)
gitlab-rails-ce-doc-18.2All versions (No fix recorded)
gitlab-rails-ce-doc-18.3All versions (No fix recorded)
gitlab-rails-ce-doc-18.4All versions (No fix recorded)
gitlab-rails-ce-doc-18.5All versions (No fix recorded)
gitlab-rails-ce-doc-18.6All versions (No fix recorded)
gitlab-rails-ce-doc-18.7All versions (No fix recorded)
gitlab-rails-ce-doc-fips-18.1All versions (No fix recorded)
gitlab-rails-ce-doc-fips-18.2All versions (No fix recorded)
gitlab-rails-ce-doc-fips-18.3All versions (No fix recorded)
gitlab-rails-ce-doc-fips-18.4All versions (No fix recorded)
gitlab-rails-ce-doc-fips-18.5All versions (No fix recorded)
gitlab-rails-ce-doc-fips-18.6All versions (No fix recorded)
gitlab-rails-ce-doc-fips-18.7All versions (No fix recorded)
gitlab-rails-ce-fips-18.1All versions (No fix recorded)
gitlab-rails-ce-fips-18.2All versions (No fix recorded)
gitlab-rails-ce-fips-18.3All versions (No fix recorded)
gitlab-rails-ce-fips-18.4All versions (No fix recorded)
gitlab-rails-ce-fips-18.5All versions (No fix recorded)
gitlab-rails-ce-fips-18.6All versions (No fix recorded)
gitlab-rails-ce-fips-18.7All versions (No fix recorded)

Show all 74

Debian2 products

node-ini< 1.1.0-1+deb9u1 | < 2.0.0-1
debian_linuxEOL9.0

Wolfi2 products

code-serverAll versions (No fix recorded)
code-server-compatAll versions (No fix recorded)

Ini_project1 product

ini< 1.3.6

Mageia1 product

nodejs-ini< 1.3.8-1.mga7

Npm1 product

ini< 1.3.6

Ubuntu1 product

node-iniAll versions (No fix recorded)

7 vendors · 82 products

References

12 links

snyk.io/vuln/SNYK-JS-INI-1048974X Refsource MISCREPORTEVIDENCEWEBExploitThird Party Advisory
github.com/npm/ini/commit/56d2805e07ccd94e2ba0984ac9240ff02d44b6f1X Refsource MISCREPORTFIXWEBPatchThird Party Advisory
lists.debian.org/debian-lts-announce/2020/12/msg00032.htmlMailing ListX Refsource MLISTAdvisoryWEBThird Party Advisory
advisories.mageia.org/MGASA-2021-0068.htmlAdvisory
bugs.mageia.org/show_bug.cgi?id=27901REPORT
www.debian.org/lts/security/2020/dla-2503WEB
ubuntu.com/security/CVE-2020-7788REPORT
www.cve.org/CVERecord?id=CVE-2020-7788REPORT
security-tracker.debian.org/tracker/CVE-2020-7788Advisory
nvd.nist.gov/vuln/detail/CVE-2020-7788Advisory

Show all 12 references

github.com/npm/iniPACKAGE
www.npmjs.com/advisories/1589WEB