CVE-2026-34455: Hi.Events is an open-source event management and ticket selling platform

This month

HIGH 8.8UPGRADE

CVE-2026-34455 is a high-severity flaw (CVSS 8.8) affecting hi.events. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Hi.Events is an open-source event management and ticket selling platform. From version 0.8.0-beta.1 to before version 1.7.1-beta, multiple repository classes pass the user-supplied sort_by query parameter directly to Eloquent's orderBy() without validation, enabling SQL injection. The application uses PostgreSQL which supports stacked queries. This issue has been patched in version 1.7.1-beta.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 72%)
CISA exploited list	No
Weakness	CWE-89
Published	2026-04-01
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: hi.events

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-01 20:16 UTCPublished CVE record published
2026-10-26 21:10 UTCUpdated Record last modified

hi.events hi.events UPGRADE

Affected: >= 0.8.0 and < 1.7.1

Fixed in: 1.7.1

Safe to downgrade to: a release before 0.8.0

1. Check installed version

apt-cache policy hi.events || rpm -q hi.events || hi.events --version

2. UPGRADE to 1.7.1 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade hi.events

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade hi.events

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 0.8.0 (Debian / Ubuntu)

apt-cache madison hi.events sudo apt install hi.events=<VERSION_BEFORE_0.8.0> sudo apt-mark hold hi.events

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

dnf --showduplicates list hi.events sudo dnf downgrade hi.events-<VERSION_BEFORE_0.8.0> sudo dnf versionlock add hi.events

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-2026-34455?

hi.events: upgrade to 1.7.1. Exact commands for each OS are on this page.

Is CVE-2026-34455 being exploited?

CVE-2026-34455 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-2026-34455 affect?

CVE-2026-34455 affects hi.events. Severity is high (CVSS 8.8). Hi.Events is an open-source event management and ticket selling platform. From version 0.8.0-beta.1 to before version 1.7.1-beta, multiple repository classes pass the user-supplied sort_by query parameter directly to Eloquent's orderBy() wi

How urgent is CVE-2026-34455?

Priority 43/100. High severity; Public exploit reference

Software pages

PostgreSQL vulnerabilities

References

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