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.
CVE-2026-27168
CRITICALNVD 9.89.8
EchelonGraph scoreLOW confidence
This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: nvd
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.8Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(low)
- EG Risk
- 49(Track)EG Risk 49/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity98% × 45%Exploitation0% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 32%
- KEV
- Not listed
Published
February 21, 2026
Last Modified
June 17, 2026
Advisory Details (1)
Auto-updated Jul 27, 2026🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available
Heap-based Buffer Overflow in Sail-codecs-xwd · Advisory · HappySeaFox/sail · GitHub
https://github.com/HappySeaFox/sail/security/advisories/GHSA-3g38-x2pj-mv55Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 2× in last 7d / 2× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-28 15:36 UTCEPSS rescore
- 2026-07-27 14:10 UTCEG score recompute
Related CVEs(same CWE)
Same CWE
10 shownCWE-122
- CVE-2016-9603NVD 5.5EG 9.9EPSS p90CRITICAL
- CVE-2006-10003EG 9.8CRITICAL
- CVE-2006-10002NVD 7.5EG 9.8CRITICAL
- CVE-2019-18323EG 9.8CRITICAL
- CVE-2019-18296EG 9.8EPSS p91CRITICAL
- CVE-2019-18295EG 9.8EPSS p91CRITICAL
- CVE-2019-18293EG 9.8EPSS p91CRITICAL
- CVE-2019-18289EG 9.8EPSS p91CRITICAL
- CVE-2019-14901EG 9.8EPSS p97CRITICAL
- CVE-2019-14895EG 9.8EPSS p94CRITICAL
Frequently asked(5)
What is CVE-2026-27168?
CVE-2026-27168 is a critical vulnerability published on February 21, 2026. 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 bytesperline value. The value os read directly from the file as the read size in…
When was CVE-2026-27168 disclosed?
CVE-2026-27168 was first published in the National Vulnerability Database on February 21, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-27168 actively exploited?
CVE-2026-27168 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 67.6% of all scored CVEs.
What is the CVSS score of CVE-2026-27168?
CVE-2026-27168 has a CVSS v3 base score of 9.8 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-27168?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-27168, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-27168
Is Your Infrastructure Affected by CVE-2026-27168?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.