CVE-2016-1000001: flask-oidc version 0.1.2 and earlier is vulnerable to an open redirect

Q: How do I fix CVE-2016-1000001?

flask-oidc: upgrade to newer than 0.1.2. Exact commands for each OS are on this page.

Q: Is CVE-2016-1000001 being exploited?

CVE-2016-1000001 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-2016-1000001 affect?

CVE-2016-1000001 affects flask-oidc. Severity is high (CVSS 7.4). flask-oidc version 0.1.2 and earlier is vulnerable to an open redirect

This month

HIGH 7.4UPGRADE

CVE-2016-1000001 is a high-severity flaw (CVSS 7.4) affecting flask-oidc. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

flask-oidc version 0.1.2 and earlier is vulnerable to an open redirect

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.4 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.8% (top 43%)
CISA exploited list	No
Weakness	CWE-601
Published	2016-10-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: flask-oidc project

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

Am I affected?

Timeline

2016-10-07 18:59 UTCPublished CVE record published
2026-06-17 00:38 UTCUpdated Record last modified

flask-oidc project flask-oidc UPGRADE

Affected: <= 0.1.2

Fixed in: newer than 0.1.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy flask-oidc || rpm -q flask-oidc || flask-oidc --version

2. UPGRADE to newer than 0.1.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade flask-oidc

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade flask-oidc

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-2016-1000001?

flask-oidc: upgrade to newer than 0.1.2. Exact commands for each OS are on this page.

Is CVE-2016-1000001 being exploited?

CVE-2016-1000001 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-2016-1000001 affect?

CVE-2016-1000001 affects flask-oidc. Severity is high (CVSS 7.4). flask-oidc version 0.1.2 and earlier is vulnerable to an open redirect

How urgent is CVE-2016-1000001?

Priority 40/100. High severity

Software pages

Flask vulnerabilities

References

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