CVE-2026-21045 - Out-of-bounds write in parsing TIFF format in libimagecodec.media.quram.so prior to SMR Jul-2026 Release 1 all

CVE-2026-21045 + Out-of-bounds write in parsing TIFF format in libimagecodec.media.quram.so prior to SMR Jul-2026 Release 1 all + High + 2026-07-10

One-sentence business risk

The vulnerable component sits in a commonly deployed application path and can create a material breach, outage, or compliance risk.

Research notes

  • Root cause: Out-of-bounds write in parsing TIFF format in libimagecodec.media.quram.so prior to SMR Jul-2026 Release 1 allows remote attackers to write out-of-bounds memory.
  • Affected versions: Samsung Mobile Samsung Mobile Devices.
  • Fixed / safe versions: SMR Jul-2026 Release in Android 14, 15, 16.
  • Public exploit / PoC signal: the consulted NVD/GHSA/vendor sources describe the trigger class; treat it as reproducible until patched.
  • CVSS: 8.4 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N.

Exact vulnerable code pattern

memcpy(dst, src, user_len); parse_nested(untrusted, no_depth_limit);

Fixed / mitigated code pattern

bounds-check length before copy, cap parser depth/counts, and reject malformed frames before allocation

Dependency or runtime update:

rg -n "affected component|CVE-2026-21045" .
# update affected runtime/product to SMR Jul-2026 Release in Android 14, 15, 16

Step-by-step integration guide

  1. Inventory affected component across source, lockfiles, SBOMs, container images, CI images, and deployment manifests.
  2. Upgrade to SMR Jul-2026 Release in Android 14, 15, 16 or apply the exact vendor patch referenced below.
  3. Replace the vulnerable memory-corruption pattern with the fixed pattern and fail closed on malformed input.
  4. Add a regression test that exercises the advisory trigger and proves the request is rejected, bounded, or authorized.
  5. Deploy through canary, monitor security logs and resource metrics, then remove temporary edge blocks only after all runtimes are fixed.

Alternative mitigations

  • Disable the vulnerable feature path while the package/runtime update rolls out.
  • Add WAF or reverse-proxy rules for traversal tokens, prototype-polluting keys, oversized frames, shell metacharacters, or unauthenticated tool calls matching the trigger class.
  • Restrict internal egress, rotate exposed secrets, and revoke affected tokens/keys if the vulnerability can disclose config, logs, JWT secrets, proxy credentials, or PKI material.
  • For admin/API authorization issues, temporarily require elevated roles and explicit ownership checks at the gateway.

Detection signature

id: cve-2026-21045-out-of-bounds-write-in-parsing-tiff-format-in-li
source: "MITRE CVE List V5"
dependency_or_product: "affected component"
affected: "Samsung Mobile Samsung Mobile Devices"
fixed: "SMR Jul-2026 Release in Android 14, 15, 16"
signals:
  - "memory-corruption"
  - "../"
  - "__proto__"
  - "tools/call"
  - "wp_ajax_nopriv"
  - "pickle.loads"
  - "shell command construction"
action: "upgrade, add regression test, and verify deploy artifact"

Copy-paste skill

You are remediating CVE-2026-21045 (Out-of-bounds write in parsing TIFF format in libimagecodec.media.quram.so prior to SMR Jul-2026 Release 1 all) in this repository.

Find every affected dependency, runtime, image, service configuration, and reachable code path. Upgrade or patch to SMR Jul-2026 Release in Android 14, 15, 16. Replace the vulnerable memory-corruption pattern with a fail-closed implementation, add a regression test for the trigger shape, and update deployment/SBOM artifacts. If this repository does not control the affected runtime, create TRIAGE.md naming the owner, affected version, fixed version, and blocking decision.

Keywords, affected tech stack, and revenue tags

  • Keywords: CVE-2026-21045, memory-corruption, affected component, MITRE CVE List V5.
  • Affected tech stack: general.
  • Revenue tags: sellable_to_fintech, enterprise_blocker, high_priority_sla.

References