that has no active image unit, resulting in attacker-controlled unbounded heap growth. The retained headers are never freed until the picture is released, which may not happen during continuous streaming. Version 1.0.20 patches the issue.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| strukturag | libde265 | affected |
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Fri, 19 Jun 2026 20:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.20, a crafted sequence of H.265 NAL units causes `decoder_context::read_slice_NAL()` (`libde265/decctx.cc:481`) to attach slice headers to a finished picture object that has no active image unit, resulting in attacker-controlled unbounded heap growth. The retained headers are never freed until the picture is released, which may not happen during continuous streaming. Version 1.0.20 patches the issue. | |
| Title | libde265 has an unbounded memory leak via orphaned slice headers in `read_slice_NAL` | |
| Weaknesses | CWE-770 | |
| References |
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| Metrics |
cvssV3_1
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-19T20:10:36.194Z
Reserved: 2026-05-29T14:35:45.902Z
Link: CVE-2026-49337
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
Updated: 2026-06-19T21:30:17Z