CVE-2026-27168

CVE-2026-27168 is a high-severity vulnerability in Sail with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-122.

Key facts

Description

SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. All versions are vulnerable to Heap-based Buffer Overflow through the XWD parser's use of the bytes_per_line value. The value os read directly from the file as the read size in io->strict_read(), and is never compared to the actual size of the destination buffer. An attacker can provide an XWD file with an arbitrarily large bytes_per_line, causing a massive write operation beyond the buffer heap allocated for the image pixels. The issue did not have a fix at the time of publication.

Frequently asked questions

What is CVE-2026-27168?
SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. All versions are vulnerable to Heap-based Buffer Overflow through the XWD parser's use of the bytes_per_line value. The value os read directly from the file as the read size in io->strict_read(), and is never compared to the actual size of the destination buffer. An attacker can provide an XWD file with an arbitrarily large bytes_per_line, causing a massive write operation beyond the buffer heap allocated for the image pixels. The issue did not have a fix at the time of publication.
How severe is CVE-2026-27168?
CVE-2026-27168 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-27168 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-27168?
CVE-2026-27168 affects Sail. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-27168?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-27168 have an EU (EUVD) identifier?
Yes. CVE-2026-27168 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7747.
When was CVE-2026-27168 published?
CVE-2026-27168 was published on 2026-02-21 and last updated on 2026-06-17.

References

Affected products (1)

More vulnerabilities in Sail

All CVEs affecting Sail →

Other CWE-122 (Heap-based Buffer Overflow) vulnerabilities

Browse all CWE-122 (Heap-based Buffer Overflow) vulnerabilities →