CVE-2020-26254: omniauth-apple is the OmniAuth strategy for "Sign In with Apple" (RubyGem omniauth-apple)

Q: How do I fix CVE-2020-26254?

omniauth-apple: upgrade to 1.0.1. Exact commands for each OS are on this page.

Q: Is CVE-2020-26254 being exploited?

CVE-2020-26254 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-2020-26254 affect?

CVE-2020-26254 affects omniauth-apple. Severity is high (CVSS 7.7). omniauth-apple is the OmniAuth strategy for "Sign In with Apple" (RubyGem omniauth-apple). In omniauth-apple before version 1.0.1 attackers can fake their email address during authentication. This vulnerability impacts applications using th

Q: How urgent is CVE-2020-26254?

Priority 50/100. High severity; Public exploit reference

This month

HIGH 7.7UPGRADE

CVE-2020-26254 is a high-severity flaw (CVSS 7.7) affecting omniauth-apple. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

omniauth-apple is the OmniAuth strategy for "Sign In with Apple" (RubyGem omniauth-apple). In omniauth-apple before version 1.0.1 attackers can fake their email address during authentication. This vulnerability impacts applications using the omniauth-apple strategy of OmniAuth and using the info.email field of OmniAuth's Auth Hash Schema for any kind of identification. The value of this field may be set to any value of the attacker's choice inclu

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.7 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.3% (top 29%)
CISA exploited list	No
Weakness	CWE-290
Published	2020-12-08
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: omniauth-apple project

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

Am I affected?

Timeline

2020-12-08 15:15 UTCPublished CVE record published
2026-06-17 03:07 UTCUpdated Record last modified

omniauth-apple project omniauth-apple UPGRADE

Affected: < 1.0.1

Fixed in: 1.0.1

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy omniauth-apple || rpm -q omniauth-apple || omniauth-apple --version

2. UPGRADE to 1.0.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade omniauth-apple

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade omniauth-apple

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-2020-26254?

omniauth-apple: upgrade to 1.0.1. Exact commands for each OS are on this page.

Is CVE-2020-26254 being exploited?

CVE-2020-26254 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-2020-26254 affect?

CVE-2020-26254 affects omniauth-apple. Severity is high (CVSS 7.7). omniauth-apple is the OmniAuth strategy for "Sign In with Apple" (RubyGem omniauth-apple). In omniauth-apple before version 1.0.1 attackers can fake their email address during authentication. This vulnerability impacts applications using th

How urgent is CVE-2020-26254?

Priority 50/100. High severity; Public exploit reference

References

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