CVE-2025-65017: Decidim is a participatory democracy framework

Routine

MEDIUM 6.5UPGRADE

CVE-2025-65017 is a medium-severity flaw (CVSS 6.5) affecting decidim. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Decidim is a participatory democracy framework. In versions from 0.30.0 to before 0.30.4 and from 0.31.0.rc1 to before 0.31.0, the private data exports can lead to data leaks in case the UUID generation, causing collisions for the generated UUIDs. This issue has been patched in versions 0.30.4 and 0.31.0.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 77%)
CISA exploited list	No
Weakness	CWE-200, CWE-703
Published	2026-02-03
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: decidim

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

Am I affected?

Timeline

2026-02-03 15:16 UTCPublished CVE record published
2026-06-17 09:55 UTCUpdated Record last modified

decidim decidim UPGRADE

Affected: >= 0.30.0 and < 0.30.4 · 0.31.0 rc1 · 0.31.0 rc2

Fixed in: 0.30.4

Safe to downgrade to: a release before 0.30.0

1. Check installed version

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

2. UPGRADE to 0.30.4 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade decidim

Note

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

3. If no update is available yet, DOWNGRADE to a release before 0.30.0 (Debian / Ubuntu)

apt-cache madison decidim sudo apt install decidim=<VERSION_BEFORE_0.30.0> sudo apt-mark hold decidim

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list decidim sudo dnf downgrade decidim-<VERSION_BEFORE_0.30.0> sudo dnf versionlock add decidim

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2025-65017?

decidim: upgrade to 0.30.4. Exact commands for each OS are on this page.

Is CVE-2025-65017 being exploited?

CVE-2025-65017 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-2025-65017 affect?

CVE-2025-65017 affects decidim. Severity is medium (CVSS 6.5). Decidim is a participatory democracy framework. In versions from 0.30.0 to before 0.30.4 and from 0.31.0.rc1 to before 0.31.0, the private data exports can lead to data leaks in case the UUID generation, causing collisions for the generated

How urgent is CVE-2025-65017?

Priority 29/100. No elevated risk signals yet.

Related CVEs

CVE-2026-40869 HIGH 7.5 UPGRADE Decidim is a participatory democracy framework
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CVE-2024-45594 HIGH 7.7 UPGRADE Decidim is a participatory democracy framework
CVE-2024-39910 MEDIUM 5.4 UPGRADE decidim is a Free Open-Source participatory democracy, citizen participation and open government for cities an
CVE-2024-32034 MEDIUM 6.8 UPGRADE decidim is a Free Open-Source participatory democracy, citizen participation and open government for cities an

References

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