CVE-2026-123367: thorvg · Out-of-bounds Write
Affects thorvgSource CVE Database V5
Not known to be exploited · CVSS 7.4 High : upgrade to 1.1.2 soon.
Data as of 9 Nov 2026, 17:34 UTC
Thin evidence
One scorer or none| CNA (GitHub_M) | CVSS 3.1 | 7.4 |
|---|
- Patch
- Available – fixed in 1.1.2
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 9 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.
What to do
Upgrade thorvg to 1.1.2.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| thorvgthorvg | Affected
| Fixed in
|
AI-suggested
Upgrade ThorVG to version 1.1.2 or later, where this vulnerability is fixed. No other mitigation is indicated or required according to the vendor advisory.
Description
ThorVG versions prior to 1.1.2 contain an out-of-bounds write vulnerability in the bundled jpgd JPEG decoder. This occurs when a crafted grayscale JPEG image includes duplicate component selectors in the SOS scan header, leading to heap buffer overflows during decoding. The flaw can be triggered via direct JPEG decoding or JPEG images embedded in Lottie content. The issue results in memory corruption and process crashes. The vulnerability is fixed in ThorVG version 1.1.2.
References
- github.com/thorvg/thorvg/security/advisories/GHSA-mw4c-w54x-248r (opens in a new tab)
- github.com/thorvg/thorvg/commit/67680c546d38d817e42eb7583dac8d87a4a319b5 (opens in a new tab)
- github.com/thorvg/thorvg/commit/e740313029dd427d1ebd9f53f300da71363f80ce (opens in a new tab)
- github.com/thorvg/thorvg/releases/tag/v1.1.2 (opens in a new tab)