CVE-2015-8748: Radicale before 1.1 allows remote authenticated users to bypass owner_write and owner_only limitations via reg

Q: How do I fix CVE-2015-8748?

radicale: upgrade to newer than 1.0.1. Exact commands for each OS are on this page.

Q: Is CVE-2015-8748 being exploited?

CVE-2015-8748 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-2015-8748 affect?

CVE-2015-8748 affects radicale. Severity is medium (CVSS 5.3). Radicale before 1.1 allows remote authenticated users to bypass owner_write and owner_only limitations via regex metacharacters in the user name, as demonstrated by ".*".

Q: How urgent is CVE-2015-8748?

Priority 49/100. Remotely exploitable, no login, no user action; On your watchlist

This month

MEDIUM 5.3REMOTEWATCHLISTUPGRADE

CVE-2015-8748 is a medium-severity flaw (CVSS 5.3) affecting radicale. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Radicale before 1.1 allows remote authenticated users to bypass owner_write and owner_only limitations via regex metacharacters in the user name, as demonstrated by ".*".

Why this priority

Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.2% (top 17%)
CISA exploited list	No
Weakness	CWE-264
Published	2016-02-03
Last modified	2026-06-17

Publisher (CNA): Debian GNU/Linux · Vendor: radicale

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

Am I affected?

Timeline

2016-02-03 18:59 UTCPublished CVE record published
2026-06-17 00:35 UTCUpdated Record last modified

radicale radicale UPGRADE

Affected: <= 1.0.1

Fixed in: newer than 1.0.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 1.0.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade radicale

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-2015-8748?

radicale: upgrade to newer than 1.0.1. Exact commands for each OS are on this page.

Is CVE-2015-8748 being exploited?

CVE-2015-8748 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-2015-8748 affect?

CVE-2015-8748 affects radicale. Severity is medium (CVSS 5.3). Radicale before 1.1 allows remote authenticated users to bypass owner_write and owner_only limitations via regex metacharacters in the user name, as demonstrated by ".*".

How urgent is CVE-2015-8748?

Priority 49/100. Remotely exploitable, no login, no user action; On your watchlist

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CVE-2015-8747 CRITICAL 10.0 UPGRADE The multifilesystem storage backend in Radicale before 1.1 allows remote attackers to read or write to arbitra

References

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