Exiv2::Internal::PngChunk::parseTXTChunk in Exiv2 v0.26 allows remote attackers to cause a denial of service (heap-based buffer over-read) via a crafted image file, a different vulnerability than CVE-2018-10999.
"https://github.com/pypa/advisory-database/blob/main/vulns/exiv2/PYSEC-2018-135.yaml"