---
id: CVE-2026-54627
title: >-
  SAIL is a cross-platform library for loading and saving images with support
  for animation, metadata, and ICC profiles
summary: >-
  SAIL is a cross-platform library for loading and saving images with support
  for animation, metadata, and ICC profiles. In 0.9.10 and earlier,
  psd_private_sail_pixel_format() in src/sail-codecs/psd/helpers.c resolves a
  one-channel PSD in …
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-122
  - CWE-787
vendor: HappySeaFox
product: sail
affected:
  - sail < 1.0.0
published: '2026-09-17'
updated: '2026-09-23'
sourceUpdated: '2026-09-23T18:12:04.247'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-54627'
references:
  - url: >-
      https://github.com/HappySeaFox/sail/commit/f44a8b779a1fc527fc6bc5caa71a66a8ed940d50
    label: security-advisories@github.com
  - url: 'https://github.com/HappySeaFox/sail/releases/tag/v1.0.0'
    label: security-advisories@github.com
  - url: >-
      https://github.com/HappySeaFox/sail/security/advisories/GHSA-ccqf-rv86-h3wm
    label: security-advisories@github.com
  - url: >-
      https://github.com/HappySeaFox/sail/security/advisories/GHSA-ccqf-rv86-h3wm
    label: 134c704f-9b21-4f2e-91b3-4a467353bcc0
tags:
  - nvd
  - cve.org
  - exploit-available
epss: 0.00775
epssPercentile: 0.53893
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-09-18T20:09:52.440545Z'
ingestedAt: '2026-09-17T20:28:02.773Z'
---

## Overview

SAIL is a cross-platform library for loading and saving images with support for animation, metadata, and ICC profiles. In 0.9.10 and earlier, psd_private_sail_pixel_format() in src/sail-codecs/psd/helpers.c resolves a one-channel PSD in Bitmap color mode to SAIL_PIXEL_FORMAT_BPP1_INDEXED without requiring the file depth to be one, so the pixel buffer uses one-bit rows while sail_codec_load_frame_v8_psd() in src/sail-codecs/psd/psd.c accepts depth == 8 and writes one attacker-controlled byte per pixel. Loading a crafted PSD through sail_load_from_file() or sail_load_from_memory() therefore writes beyond each heap row, causing memory corruption, a reliable crash, or potential code execution. This mode/depth mismatch is distinct from GHSA-rcqx-gc76-r9mv and GHSA-wcj8-hxxf-pq2c. This issue is fixed in version 1.0.0.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.