libvips is a fast image processing library with low memory needs. Prior to version 8.18.3, libvips built with libultrahdr support can incorrectly size an output buffer in libvips/foreign/uhdrsave.c within vips_foreign_save_uhdr_set_raw_hdr when a pipeline enlarges an incoming JPEG to a very large output before encoding a gain map through VipsForeignSaveUhdr. The undersized allocation can cause a heap buffer over-read that may disclose adjacent data or crash the process. This issue is fixed in version 8.18.3.
CVE-2026-70652
LOWPre-NVD 2.02.0—Trending — 3 sources updated this week
EchelonGraph scoreMEDIUM confidence
This low-severity CVE scores 2.0 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.1%, top 98% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, secondary
2.0EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 2.0Exploit: None knownExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 2.0
- EG Score
- 2.0(medium)
- EG Risk
- 9(Track)EG Risk 9/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity20% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 2%
- KEV
- Not listed
Published
August 20, 2026
Last Modified
August 21, 2026
References (4)
- security-advisories@githubhttps://github.com/libvips/libvips/commit/cff17794f0698a4f47c74bb31c9700b2c83252a8
- security-advisories@githubhttps://github.com/libvips/libvips/pull/5039
- security-advisories@githubhttps://github.com/libvips/libvips/releases/tag/v8.18.3
- security-advisories@githubhttps://github.com/libvips/libvips/security/advisories/GHSA-h27h-jf9v-m8rg
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 8× in last 7d / 8× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-08-25 13:49 UTCEPSS rescore
- 2026-08-24 20:16 UTCEG score recompute
- 2026-08-23 00:19 UTCEPSS rescore
- 2026-08-21 23:49 UTCEPSS rescore
- 2026-08-21 22:26 UTCEG score recompute
- 2026-08-21 21:52 UTCEG score recompute
- 2026-08-20 21:17 UTCEG score recompute
- 2026-08-20 21:16 UTCMITRE cvelistV5first tracked
Frequently asked(5)
What is CVE-2026-70652?
CVE-2026-70652 is a low vulnerability published on August 20, 2026. libvips is a fast image processing library with low memory needs. Prior to version 8.18.3, libvips built with libultrahdr support can incorrectly size an output buffer in libvips/foreign/uhdrsave.c within vipsforeignsaveuhdrsetrawhdr when a pipeline enlarges an incoming JPEG to a very large output…
When was CVE-2026-70652 disclosed?
CVE-2026-70652 was first published in the National Vulnerability Database on August 20, 2026, with the most recent update on August 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-70652 actively exploited?
CVE-2026-70652 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 98.4% of all scored CVEs.
What is the CVSS score of CVE-2026-70652?
CVE-2026-70652 has a CVSS v3 base score of 2.0 (NVD).
How do I remediate CVE-2026-70652?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-70652, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-70652
Is Your Infrastructure Affected by CVE-2026-70652?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.