CVE Explorer
CVE-2026-34757
LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From 1.0.9 to before 1.6.57, passing a pointer obtained from png_get_PLTE, png_get_tRNS, or png_get_hIST back into the corresponding setter on the same png_struct/png_info pair causes the setter to read from freed memory and copy its contents into the replacement buffer. The setter frees the internal buffer before copying from the caller-supplied pointer, wh
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"libpng","vendor":"pnggroup","versions":[{"status":"affected","version":">= 1.0.9, < 1.6.57"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:f8d38b233804e3fd8f2967b2bf1e4bc7800f7e45b2f4ee21286c8172365152cb · sha256:4c03c667b1fa2ac8… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"NONE","baseScore":5.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:f8d38b233804e3fd8f2967b2bf1e4bc7800f7e45b2f4ee21286c8172365152cb · sha256:4c03c667b1fa2ac8… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-416","description":"CWE-416: Use After Free","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:f8d38b233804e3fd8f2967b2bf1e4bc7800f7e45b2f4ee21286c8172365152cb · sha256:4c03c667b1fa2ac8… · /containers/cna/problemTypes/0/descriptions/0
Source references
6 source assertions{"name":"https://github.com/pnggroup/libpng/commit/398cbe3df03f4e11bb031e07f416dfdde3684e8a","tags":["x_refsource_MISC"],"url":"https://github.com/pnggroup/libpng/commit/398cbe3df03f4e11bb031e07f416dfdde3684e8a"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f8d38b233804e3fd8f2967b2bf1e4bc7800f7e45b2f4ee21286c8172365152cb · sha256:4c03c667b1fa2ac8… · /containers/cna/references/3
{"name":"https://github.com/pnggroup/libpng/commit/55d20aaa322c9274491cda82c5cd4f99b48c6bcc","tags":["x_refsource_MISC"],"url":"https://github.com/pnggroup/libpng/commit/55d20aaa322c9274491cda82c5cd4f99b48c6bcc"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f8d38b233804e3fd8f2967b2bf1e4bc7800f7e45b2f4ee21286c8172365152cb · sha256:4c03c667b1fa2ac8… · /containers/cna/references/4
{"name":"https://github.com/pnggroup/libpng/issues/836","tags":["x_refsource_MISC"],"url":"https://github.com/pnggroup/libpng/issues/836"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f8d38b233804e3fd8f2967b2bf1e4bc7800f7e45b2f4ee21286c8172365152cb · sha256:4c03c667b1fa2ac8… · /containers/cna/references/1
{"name":"https://github.com/pnggroup/libpng/issues/837","tags":["x_refsource_MISC"],"url":"https://github.com/pnggroup/libpng/issues/837"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f8d38b233804e3fd8f2967b2bf1e4bc7800f7e45b2f4ee21286c8172365152cb · sha256:4c03c667b1fa2ac8… · /containers/cna/references/2
{"name":"https://github.com/pnggroup/libpng/security/advisories/GHSA-6fr7-g8h7-v645","tags":["x_refsource_CONFIRM"],"url":"https://github.com/pnggroup/libpng/security/advisories/GHSA-6fr7-g8h7-v645"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f8d38b233804e3fd8f2967b2bf1e4bc7800f7e45b2f4ee21286c8172365152cb · sha256:4c03c667b1fa2ac8… · /containers/cna/references/0
{"url":"https://lists.debian.org/debian-lts-announce/2026/05/msg00017.html"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:f8d38b233804e3fd8f2967b2bf1e4bc7800f7e45b2f4ee21286c8172365152cb · sha256:4c03c667b1fa2ac8… · /containers/adp/1/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.