CVE-2026-2258: A flaw has been found in aardappel lobster up to 2025.4

Q: How do I fix CVE-2026-2258?

lobster: upgrade to newer than 2025.4. Exact commands for each OS are on this page.

Q: Is CVE-2026-2258 being exploited?

CVE-2026-2258 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-2026-2258 affect?

CVE-2026-2258 affects lobster. Severity is low (CVSS 3.3). A flaw has been found in aardappel lobster up to 2025.4. Affected by this vulnerability is the function WaveFunctionCollapse in the library dev/src/lobster/wfc.h. Executing a manipulation can lead to memory corruption. The attack can only b

Q: How urgent is CVE-2026-2258?

Priority 20/100. Public exploit reference

Routine

LOW 3.3UPGRADE

CVE-2026-2258 is a low-severity flaw (CVSS 3.3) affecting lobster. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw has been found in aardappel lobster up to 2025.4. Affected by this vulnerability is the function WaveFunctionCollapse in the library dev/src/lobster/wfc.h. Executing a manipulation can lead to memory corruption. The attack can only be executed locally. The exploit has been published and may be used. This patch is called c2047a33e1ac2c42ab7e8704b33f7ea518a11ffd. It is advisable to implement a patch to correct this issue.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	3.3 (Low)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-119, CWE-787
Published	2026-02-10
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: strlen

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

Am I affected?

Timeline

2026-02-10 00:16 UTCPublished CVE record published
2026-06-17 10:30 UTCUpdated Record last modified

strlen lobster UPGRADE

Affected: <= 2025.4

Fixed in: newer than 2025.4

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2025.4 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade lobster

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-2026-2258?

lobster: upgrade to newer than 2025.4. Exact commands for each OS are on this page.

Is CVE-2026-2258 being exploited?

CVE-2026-2258 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-2026-2258 affect?

CVE-2026-2258 affects lobster. Severity is low (CVSS 3.3). A flaw has been found in aardappel lobster up to 2025.4. Affected by this vulnerability is the function WaveFunctionCollapse in the library dev/src/lobster/wfc.h. Executing a manipulation can lead to memory corruption. The attack can only b

How urgent is CVE-2026-2258?

Priority 20/100. Public exploit reference

Related CVEs

CVE-2026-2887 LOW 3.3 UPGRADE A security vulnerability has been detected in aardappel lobster up to 2025.4
CVE-2026-2259 LOW 3.3 UPGRADE A vulnerability has been found in aardappel lobster up to 2025.4

References

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