CVE-2020-7791: This affects the package i18n before 2.1.15

Q: How do I fix CVE-2020-7791?

i18n: upgrade to 2.1.15. Exact commands for each OS are on this page.

Q: Is CVE-2020-7791 being exploited?

CVE-2020-7791 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2020-7791 affect?

CVE-2020-7791 affects i18n. Severity is high (CVSS 7.5). This affects the package i18n before 2.1.15. Vulnerability arises out of insufficient handling of erroneous language tags in src/i18n/Concrete/TextLocalizer.cs and src/i18n/LocalizedApplication.cs.

Q: How urgent is CVE-2020-7791?

Priority 53/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2020-7791 is a high-severity flaw (CVSS 7.5) affecting i18n. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

This affects the package i18n before 2.1.15. Vulnerability arises out of insufficient handling of erroneous language tags in src/i18n/Concrete/TextLocalizer.cs and src/i18n/LocalizedApplication.cs.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	3.0% (top 13%)
CISA exploited list	No
Published	2020-12-11
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: i18n project

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2020-12-11 17:15 UTCPublished CVE record published
2026-06-17 03:25 UTCUpdated Record last modified

i18n project i18n UPGRADE

Affected: < 2.1.15

Fixed in: 2.1.15

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy i18n || rpm -q i18n || i18n --version

2. UPGRADE to 2.1.15 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade i18n

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade i18n

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2020-7791?

i18n: upgrade to 2.1.15. Exact commands for each OS are on this page.

Is CVE-2020-7791 being exploited?

CVE-2020-7791 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2020-7791 affect?

CVE-2020-7791 affects i18n. Severity is high (CVSS 7.5). This affects the package i18n before 2.1.15. Vulnerability arises out of insufficient handling of erroneous language tags in src/i18n/Concrete/TextLocalizer.cs and src/i18n/LocalizedApplication.cs.

How urgent is CVE-2020-7791?

Priority 53/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2020-36627 MEDIUM 5.5 UPGRADE A vulnerability was found in Macaron i18n

References

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