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PatchSiren cyber security CVE debrief

CVE-2026-30141 bitbank2 CVE debrief

CVE-2026-30141 is a critical vulnerability in the DecodeLZW function of AnimatedGIF v2.2.0. A remote attacker can exploit this via a crafted GIF file to cause a denial of service (crash) or potentially execute arbitrary code. The vulnerability has a CVSS score of 9.8 and is considered CRITICAL.

Vendor
bitbank2
Product
AnimatedGIF
CVSS
CRITICAL 9.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-09
Original CVE updated
2026-06-10
Advisory published
2026-06-09
Advisory updated
2026-06-10

Who should care

Users of AnimatedGIF v2.2.0, especially those who process GIF files from untrusted sources, should be aware of this vulnerability and take steps to mitigate it.

Technical summary

The vulnerability is caused by a buffer overflow in the DecodeLZW function of AnimatedGIF v2.2.0. This function is used to decode LZW-compressed GIF data. An attacker can exploit this vulnerability by crafting a GIF file that overflows the buffer, potentially allowing for arbitrary code execution.

Defensive priority

High

Recommended defensive actions

  • Update to a patched version of AnimatedGIF, if available.
  • Validate and sanitize GIF files before processing them.
  • Implement memory protection mechanisms, such as address space layout randomization (ASLR) and data execution prevention (DEP).

Evidence notes

The vulnerability was discovered and reported via [ref-4](https://github.com/bitbank2/AnimatedGIF/issues/115).

Sources and references

Verified primary and authoritative sources

  • CVE-2026-30141 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-30141

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-30141 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-30141

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.