USN-8559-1: rlottie vulnerabilities
It was discovered that rlottie incorrectly handled certain shift operations. An attacker could possibly use this issue to cause rlottie to read out of bounds, resulting in a denial of service or exposing sensitive information. (CVE-2026-10305) It was discovered that rlottie did not properly limit recursion when processing certain Lottie animations. An attacker could possibly use this issue to cause rlottie to crash, resulting in a denial of service. (CVE-2026-47306) It was discovered that rlottie incorrectly handled certain span coordinates. An attacker could possibly use this issue to cause a stack-based buffer overflow, resulting in a denial of service or possibly the execution of arbitrary code. (CVE-2026-47318) It was discovered that rlottie incorrectly handled certain path data. An attacker could possibly use this issue to cause rlottie to allocate an excessive amount of memory, resulting in a denial of service. (CVE-2026-47319) It was discovered that rlottie did not properly limit recursion and could access an uninitialized pointer when processing certain Lottie animations. An attacker could possibly use this issue to cause rlottie to crash, resulting in a denial of service. (CVE-2026-47320) It was discovered that rlottie incorrectly handled certain array lengths in the bundled FreeType raster code. An attacker could possibly use this issue to cause an out-of-bounds write, resulting in a denial of service or possibly the execution of arbitrary code. This issue only affected Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-8916)
CSIRTS triage
- What
- rlottie has vulnerabilities that could lead to denial of service or arbitrary code execution.
- Who is affected
- Users of rlottie processing certain Lottie animations.
- Urgency
- Remediation is urgent due to the potential for exploitation and the severity of the vulnerabilities.
- Action
- Users should apply the necessary updates to rlottie.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://ubuntu.com/security/notices/USN-8559-1
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-103050.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all scored CVEs.
- Low exploitation riskCVE-2026-473060.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all scored CVEs.
- Low exploitation riskCVE-2026-473180.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all scored CVEs.
- Low exploitation riskCVE-2026-473190.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all scored CVEs.
- Low exploitation riskCVE-2026-473200.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all scored CVEs.
- Low exploitation riskCVE-2026-89160.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-10305 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-47306 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-47318 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-47319 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-47320 | coverage & exploitation status | NVD · CVE.org |
| CVE-2026-8916 | coverage & exploitation status | NVD · CVE.org |
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