CVE-2023-29465: SageMath FlintQS 1.0 relies on pathnames under TMPDIR (typically world-writable), which (for example) allows a

Routine

MEDIUM 5.5DOWNGRADE

CVE-2023-29465 is a medium-severity flaw (CVSS 5.5) affecting flintqs. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SageMath FlintQS 1.0 relies on pathnames under TMPDIR (typically world-writable), which (for example) allows a local user to overwrite files with the privileges of a different user (who is running FlintQS).

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 84%)
CISA exploited list	No
Published	2023-04-06
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: sagemath

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

Am I affected?

Timeline

2023-04-06 20:15 UTCPublished CVE record published
2026-06-17 05:50 UTCUpdated Record last modified

sagemath flintqs DOWNGRADE

Affected: 1.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.0 (Debian / Ubuntu)

apt-cache madison flintqs sudo apt install flintqs=<VERSION_BEFORE_1.0> sudo apt-mark hold flintqs

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list flintqs sudo dnf downgrade flintqs-<VERSION_BEFORE_1.0> sudo dnf versionlock add flintqs

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-2023-29465?

flintqs: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-29465 being exploited?

CVE-2023-29465 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-2023-29465 affect?

CVE-2023-29465 affects flintqs. Severity is medium (CVSS 5.5). SageMath FlintQS 1.0 relies on pathnames under TMPDIR (typically world-writable), which (for example) allows a local user to overwrite files with the privileges of a different user (who is running FlintQS).

How urgent is CVE-2023-29465?

Priority 28/100. Public exploit reference

References

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