CVE-2026-1418
Published: 26 January 2026
Summary
CVE-2026-1418 is a medium-severity Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119) vulnerability in Gpac Gpac. Its CVSS base score is 4.8 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 2.9th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SI-2 (Flaw Remediation) and CM-7 (Least Functionality).
Deeper analysis
CVE-2026-1418 is an out-of-bounds write vulnerability in GPAC versions up to and including 2.4.0. The issue resides in the gf_text_import_srt_bifs function within the file src/scene_manager/text_to_bifs.c, part of the SRT Subtitle Import component. This flaw, associated with CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) and CWE-787 (Out-of-bounds Write), was publicly disclosed on 2026-01-26.
The vulnerability requires local access (AV:L) with low privileges (PR:L) and low attack complexity (AC:L), needing no user interaction (UI:N) and maintaining unchanged scope (S:U). An attacker could exploit it to achieve low impacts on confidentiality, integrity, and availability, as scored at CVSS 5.3 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L). The exploit has been publicly disclosed and may be used.
Mitigation is addressed by applying the patch in commit 10c73b82cf0e367383d091db38566a0e4fe71772, available in the GPAC GitHub repository. Security advisories recommend updating to a patched version as best practice, with details documented in GPAC issue #3425 and related VulDB entry.
The exploit code has been publicly released, increasing the risk for unpatched GPAC installations used in multimedia processing.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-4698
Vulnerability details
A security vulnerability has been detected in GPAC up to 2.4.0. This affects the function gf_text_import_srt_bifs of the file src/scene_manager/text_to_bifs.c of the component SRT Subtitle Import. Such manipulation leads to out-of-bounds write. The attack needs to be performed locally. The…
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exploit has been disclosed publicly and may be used. The name of the patch is 10c73b82cf0e367383d091db38566a0e4fe71772. It is best practice to apply a patch to resolve this issue.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Local out-of-bounds write provides memory corruption primitive usable for privilege escalation via crafted local input to GPAC library.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires timely installation of the vendor patch (commit 10c73b82) that eliminates the out-of-bounds write in gf_text_import_srt_bifs.
Enforces hardware or OS memory-protection mechanisms that can block or contain the CWE-787 out-of-bounds write before it corrupts adjacent memory.
Allows disabling or restricting the SRT Subtitle Import component (or the entire GPAC binary) so the vulnerable code path cannot be reached.