CVE-2026-70653

MEDIUMPre-NVD 4.84.8—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.8 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
4.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

libvips is a fast image processing library with low memory needs. Prior to version 8.18.3, the old-style Radiance RLE decoder in libvips/foreign/radiance.c can process a repeat marker at the beginning of a scanline in scanline_read_old and read q[-1] before any prior pixel exists. A crafted Radiance image loaded through VipsForeignLoadRad can therefore disclose four bytes of adjacent heap data, most likely other image data. This issue is fixed in version 8.18.3.

CVSS v3
4.8
EG Score
4.8(medium)
EG Risk
22(Track)
EG Risk 22/100SSVC: 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 computed
Severity48% × 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

Advisory Details (4)

Auto-updated Aug 20, 2026
Patch available. Sources: github, github_commit, github_pr, github_release.
github Patch Available

Possible heap-based buffer read overflow when decoding a well-crafted RLE Radiance image · Advisory · libvips/libvips · GitHub

https://github.com/libvips/libvips/security/advisories/GHSA-fh99-55jf-5hj3
github_release Patch Available

v8.18.3

Patch available: libvips/libvips v8.18.3

https://github.com/libvips/libvips/releases/tag/v8.18.3
github_pr Patch Available

radload: deprecate old-style RAD load

Patch available: libvips/libvips v8.18.3-rc1 (PR #5037 merged 2026-05-13)

https://github.com/libvips/libvips/pull/5037
github_commit Patch Available

commit dc945573e15d (libvips/libvips)

Patch available: libvips/libvips v8.18.3-rc1 (contains commit dc945573e15d)

https://github.com/libvips/libvips/commit/dc945573e15d598054e701c65b90a35b16b19304

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 17× 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.

  1. 2026-08-30 01:35 UTCEG score recompute
  2. 2026-08-30 01:22 UTCEPSS rescore
  3. 2026-08-29 03:19 UTCEG score recompute
  4. 2026-08-28 21:42 UTCEPSS rescore
  5. 2026-08-28 05:02 UTCEG score recompute
  6. 2026-08-26 07:46 UTCEG score recompute
  7. 2026-08-25 13:49 UTCEPSS rescore
  8. 2026-08-25 09:29 UTCEG score recompute
  9. 2026-08-24 11:13 UTCEG score recompute
  10. 2026-08-23 12:56 UTCEG score recompute
  11. 2026-08-23 00:19 UTCEPSS rescore
  12. 2026-08-22 14:39 UTCEG score recompute
  13. 2026-08-21 23:49 UTCEPSS rescore
  14. 2026-08-21 16:22 UTCEG score recompute
  15. 2026-08-21 15:56 UTCEG score recompute
  16. 2026-08-20 21:17 UTCEG score recompute
  17. 2026-08-20 21:16 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-70653?
CVE-2026-70653 is a medium vulnerability published on August 20, 2026. libvips is a fast image processing library with low memory needs. Prior to version 8.18.3, the old-style Radiance RLE decoder in libvips/foreign/radiance.c can process a repeat marker at the beginning of a scanline in scanlinereadold and read q[-1] before any prior pixel exists. A crafted Radiance…
When was CVE-2026-70653 disclosed?
CVE-2026-70653 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-2026-70653 actively exploited?
CVE-2026-70653 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 97.6% of all scored CVEs.
What is the CVSS score of CVE-2026-70653?
CVE-2026-70653 has a CVSS v3 base score of 4.8 (NVD).
How do I remediate CVE-2026-70653?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-70653, 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

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