Smarty is a template engine for PHP, facilitating the separation of presentation (HTML/CSS) from application logic. Prior to 4.5.7 and 5.8.2, depending on the release line, Smarty's {fetch} handling in libs/plugins/function.fetch.php and src/FunctionHandler/Fetch.php used Security::isTrustedUri() to validate only the initial remote URL against trusted_uri when a security policy was active. For resources handled by file_get_contents(), including HTTPS URLs, PHP followed HTTP redirects by default. An attacker who could supply or influence a fetch target and had an open redirect on a trusted host could redirect the request to an attacker-chosen internal endpoint, bypass the trusted_uri allowlist, and perform server-side request forgery. This issue is fixed in versions 4.5.7 and 5.8.2.
CVE-2026-62993
“—” beside the score: it is equal to the CVSS score beside it.
This medium-severity CVE scores 6.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6% (47th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
Also known asEUVD-2026-68814 (ENISA EUVD) · GHSA-cq55-c7wv-pxmq (GitHub Security Advisories)Source: ENISA EUVD
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 6.9
- EG Score
- 6.9MEDIUMmedium confidence
- EG Risk
- 31EG Risk 31/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity69% × 45%Impact severity (EG Severity): CVSS 6.9 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation0.6% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines. - EPSS PROB
- 0.6%
- EPSS %ILE
- 47th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (6.9): severity, escalated by confirmed exploitation. This CVE's 6.9 is its impact severity (EG Severity), not escalated.
- EG Severity
- 6.9 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
- EG Likelihood
- 0.6% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-31). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.
A fix is available. Apply it within your standard update timelines.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
August 31, 2026
Last Modified
September 8, 2026
Advisory Details (6)
Auto-updated Aug 31, 2026v5.8.2
Patch available: smarty-php/smarty v5.8.2
https://github.com/smarty-php/smarty/releases/tag/v5.8.2v4.5.7
Patch available: smarty-php/smarty v4.5.7
https://github.com/smarty-php/smarty/releases/tag/v4.5.7commit a1ccdb051802 (smarty-php/smarty)
Patch available: smarty-php/smarty v4.5.7 (contains commit a1ccdb051802)
https://github.com/smarty-php/smarty/commit/a1ccdb0518021a559b4066c37b76a42c86bbce90commit 31e06fc087a8 (smarty-php/smarty)
Patch available: smarty-php/smarty v5.8.2 (contains commit 31e06fc087a8)
https://github.com/smarty-php/smarty/commit/31e06fc087a8b5a9b236c1e5dacc1c2850a2c115Port security fixes from v5.8.2 to Smarty v4.
Patch available: smarty-php/smarty v4.5.7 (PR #1194 merged 2026-06-29)
https://github.com/smarty-php/smarty/pull/1194SSRF via redirect bypass of trusted_uri using {fetch} · Advisory · smarty-php/smarty · GitHub
Affected: 5.8.2. When a security policy is active, {fetch} now passes a stream context that
https://github.com/smarty-php/smarty/security/advisories/GHSA-cq55-c7wv-pxmqVendor Advisories for CVE-2026-62993(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(2)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| composer | smarty/smarty @ 5.8.2 (fixes >= 5.0.0, < 5.8.2) | — | ghsa |
| composer | smarty/smarty @ 4.5.7 (fixes < 4.5.7) | — | ghsa |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(7 across 4 ecosystems)
Debian:12(2)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| smarty3 | 3.1.47-2, 3.1.47-2+deb12u1, 3.1.48-1, 3.1.48-2 |
| — |
| smarty4 | 4.3.0-1 ... 4.5.5-1 (6 versions) |
| — |
Debian:13(2)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| smarty3 | 3.1.48-2 |
| — |
| smarty4 | 4.5.5-1 |
| — |
Debian:14(2)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| smarty3 | 3.1.48-2 |
| — |
| smarty4 | 4.5.5-1 |
| — |
Packagist(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| smarty/smarty | v2.6.24 ... v4.5.6 (72 versions) |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 47× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
- 2026-11-01 16:35 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-11-01 07:41 UTCGHSA enrichmentGHSA-cq55-c7wv-pxmq · GitHub severity MODERATE
- 2026-11-01 07:41 UTCEG score recompute
- 2026-10-31 16:33 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-30 08:55 UTCOSV refresh
- 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-26 16:32 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.6% · 47th percentile
- 2026-10-25 14:13 UTCEG score recompute
- 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-10-22 19:51 UTCEG score recompute
- 2026-10-22 16:35 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-10-18 03:23 UTCEG score recompute
- 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-10-16 16:43 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.6% · 46th percentile
- 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.6% · 46th percentile
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- 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-10-12 15:49 UTCEG score recompute
- 2026-10-11 19:33 UTCEG score recompute
- 2026-10-11 16:48 UTCEG score recompute
- 2026-10-11 14:10 UTCEG score recompute
- 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-10-10 01:20 UTCEG score recompute
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-10-09 02:15 UTCEG score recompute
- 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-10-08 01:09 UTCEG score recompute
- 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-10-07 02:10 UTCEG score recompute
- 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-10-06 02:59 UTCEG score recompute
- 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-10-05 04:01 UTCEG score recompute
- 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-10-04 04:59 UTCEG score recompute
- 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-10-03 06:00 UTCEG score recompute
- 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-10-02 06:49 UTCEG score recompute
- 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-10-01 07:50 UTCEG score recompute
- 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-09-30 08:51 UTCEG score recompute
- 2026-09-29 09:52 UTCEG score recompute
- 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-09-28 10:53 UTCEG score recompute
- 2026-09-27 11:54 UTCEG score recompute
- 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-09-26 12:52 UTCEG score recompute
- 2026-09-24 14:27 UTCEG score recompute
- 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.4% · 36th percentile
- 2026-09-22 16:15 UTCEG score recompute
- 2026-09-21 17:14 UTCEG score recompute
- 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-09-19 18:45 UTCEG score recompute
- 2026-09-18 19:46 UTCEG score recompute
- 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-09-17 20:47 UTCEG score recompute
- 2026-09-16 18:43 UTCEG score recompute
- 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-09-15 18:27 UTCEG score recompute
- 2026-09-13 19:38 UTCEG score recompute
- 2026-09-12 20:39 UTCEG score recompute
- 2026-09-11 21:40 UTCEG score recompute
- 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-09-10 22:41 UTCEG score recompute
- 2026-09-09 23:42 UTCEG score recompute
- 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-09-08 21:12 UTCEG score recompute
- 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-09-06 14:38 UTCEG score recompute
- 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-09-05 15:39 UTCEG score recompute
- 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-09-04 16:39 UTCEG score recompute
- 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-09-02 18:37 UTCEG score recompute
- 2026-09-02 17:46 UTCEG score recompute
- 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-09-01 20:22 UTCEG score recompute
- 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.4% · 35th percentile
- 2026-08-31 21:21 UTCEG score recompute
- 2026-08-31 21:07 UTCEG score recomputeFirst assessed: 6.9 MEDIUM
- 2026-08-31 21:04 UTCMITRE cvelistV5first tracked
Related CVEs(same product + same CWE)
Same product
10 shownDebian:12:smarty4 · Packagist:smarty/smarty
Frequently asked(5)
What is CVE-2026-62993?
When was the CVE record for CVE-2026-62993 published?
Is CVE-2026-62993 actively exploited?
What is the CVSS score of CVE-2026-62993?
How do I remediate CVE-2026-62993?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-62993
Is Your Infrastructure Affected by CVE-2026-62993?
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